26 questions · Core Christian beliefs and doctrine
Theology is simply thinking carefully about God. The word itself means "the study of God." Far from being dry or academic, theology touches the deepest questions of human existence. Who is God? What is He like? How does He relate to the world?
These questions matter because your view of God shapes everything else. How you pray. How you face suffering. How you treat others. How you understand yourself. A.W. Tozer wrote, "What comes into our minds when we think about God is the most important thing about us."
The Christian faith makes remarkable claims. God is one, yet three persons—Father, Son, and Holy Spirit. Jesus is fully God and fully human. The Bible is God's Word, breathed out by Him through human authors. These doctrines are not arbitrary. They arise from Scripture and have been tested by centuries of Christian reflection.
You don't need a seminary degree to engage with theology. You need only a Bible and a willingness to think. The great creeds and confessions distill what Christians have always believed. Theologians like Augustine, Aquinas, Luther, Calvin, and Wesley guide us in understanding Scripture's teaching.
Start with the questions below. They cover core Christian beliefs—the Trinity, the nature of Christ, the authority of Scripture, and more. Let your mind be stretched. Let your heart be warmed. Let your faith be deepened.
"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast."
Ephesians 2:8-9
"And the Word became flesh and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth."
John 1:14
"Now faith is the assurance of things hoped for, the conviction of things not seen."
Hebrews 11:1
"Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit."
Matthew 28:19
"In the beginning was the Word, and the Word was with God, and the Word was God."
John 1:1
Grace is God's unmerited favor—His love and mercy given freely to humanity despite our unworthiness. In Christian theology, grace is the foundation of salvation, given through faith in Jesus Christ, not earned by works (Ephesians 2:8-9).
The Sabbath is the seventh day of rest commanded in the Ten Commandments, commemorating God's rest after creation. Jews observe Saturday; most Christians worship Sunday (the Lord's Day—Christ's resurrection day). Christians debate whether Sabbath commands still apply or are fulfilled in Christ, our ultimate rest (Hebrews 4).
Christians are called to pursue justice as an expression of God's character. Micah 6:8 summarizes this: do justice, love mercy, walk humbly with God. Practically, this means defending those who cannot defend themselves (Proverbs 31:8-9), treating workers fairly (James 5:4), caring for the vulnerable (James 1:27), and speaking truth to power (Amos 5:15). Christians pursue justice not to earn God's favor but because they have already received it — justice flows from gratitude, not legalism.
Jesus Christ is the Son of God, the second person of the Trinity, who became human to save humanity from sin. Christians believe He is fully God and fully man, born of the Virgin Mary, who died on the cross for our sins and rose again on the third day.
Yes, virtually all historians—Christian and non-Christian—accept Jesus' historical existence. Evidence includes New Testament documents, secular historians (Josephus, Tacitus, Pliny), early church fathers, and the rapid spread of Christianity. The question isn't whether Jesus existed but who He truly was.
Faith is confident trust in God and His promises, even when we cannot see the outcome. Hebrews 11:1 defines faith as 'the assurance of things hoped for, the conviction of things not seen.' Biblical faith involves belief, trust, and active obedience to God's Word.
No—while religions share some moral teachings, they have fundamentally different views of God, humanity, salvation, and truth. Christianity uniquely claims Jesus as the only way to God (John 14:6). Salvation is by grace through faith in Christ, not works. Jesus' resurrection validates His exclusive claims.
The Trinity is the Christian doctrine that God exists as three distinct persons—Father, Son, and Holy Spirit—who are one God in essence. Each person is fully God, yet there is only one God. This mystery is revealed throughout Scripture, from creation to Christ's baptism.
Generational curses refer to the idea that consequences of ancestors' sins are passed down through family lines. Exodus 20:5 mentions God 'visiting the iniquity of the fathers on the children to the third and fourth generation.' However, Ezekiel 18:20 clarifies that each person bears their own sin. In Christ, believers are freed from every curse (Galatians 3:13).
Yes, Jesus is God. Scripture clearly teaches that Jesus is divine—the second person of the Trinity. John 1:1 declares 'the Word was God.' Jesus accepted worship, forgave sins, and claimed equality with the Father. Thomas called Him 'My Lord and my God' (John 20:28).
Hesed is a Hebrew word central to the Old Testament, often translated as 'steadfast love,' 'lovingkindness,' or 'faithful love.' It describes God's loyal, covenant-keeping love that endures despite human unfaithfulness. It combines love, loyalty, and mercy. Psalm 136 repeats 'His hesed endures forever' 26 times, celebrating God's unwavering commitment to His people.
The Bible is God's inspired Word to humanity—a collection of 66 books written by about 40 authors over 1,500 years. It reveals God's character, His plan of salvation, and how to live. Christians believe it is inerrant in its original manuscripts and authoritative for faith and practice.
Circumcision was given to Abraham as a sign of God's covenant (Genesis 17:10-11) and required for all Israelite males. In the New Testament, the Jerusalem Council declared circumcision unnecessary for Gentile believers (Acts 15). Paul taught that 'circumcision of the heart' through faith in Christ is what matters (Romans 2:29), not the physical act.
The resurrection is Jesus' bodily rising from the dead on the third day after crucifixion—the foundation of Christian faith. Without it, faith is futile (1 Corinthians 15:17). It proves Jesus' divinity, validates His sacrifice, and guarantees our future resurrection. We too will be raised with transformed, immortal bodies.
Biblical mercy is God's compassionate withholding of deserved punishment and active relief of human suffering. It is rooted in God's character—Exodus 34:6 calls Him 'merciful and gracious.' Mercy differs from grace: mercy withholds punishment we deserve, while grace gives blessings we don't. Jesus said 'Blessed are the merciful, for they shall receive mercy' (Matthew 5:7).
Christians believe the Bible is God's inspired, inerrant Word—true in all it teaches. Evidence includes fulfilled prophecy, historical and archaeological confirmation, manuscript reliability, internal consistency despite 40+ authors over 1,500 years, transformed lives, and the testimony of Jesus Himself who treated Scripture as authoritative.
The Bible consistently condemns injustice and portrays God as the defender of the oppressed. The prophets repeatedly denounce unjust rulers, corrupt judges, and exploitation of the poor. Amos thunders against those who 'trample on the poor' and 'push the afflicted out of the way.' Isaiah warns against those who 'decree iniquitous decrees.' God does not merely disapprove of injustice — he actively opposes it and promises to set things right.
Evidence for God includes: creation's design pointing to a Designer (Romans 1:20), moral conscience suggesting a Moral Lawgiver, the fine-tuning of the universe, fulfilled prophecy, Jesus' resurrection, transformed lives, and the existence of something rather than nothing. Ultimately, God reveals Himself to those who seek Him (Jeremiah 29:13).
The Bible calls believers to pursue justice for the poor, the widow, the orphan, and the foreigner. The Hebrew prophets — Amos, Isaiah, Micah, Jeremiah — consistently linked true worship of God to just treatment of vulnerable people. Jesus announced his mission in terms of social liberation: 'good news to the poor... liberty to the captives' (Luke 4:18). While Christians debate the relationship between personal righteousness and systemic reform, Scripture clearly demands both individual and communal justice.
God's justice means He always acts in accordance with what is right, fair, and morally perfect. He judges impartially, defends the oppressed, and punishes wrongdoing. Biblical justice encompasses both retributive justice (punishment for sin) and restorative justice (making things right). The cross displays both—sin is punished and sinners are redeemed.
The wrath of God is his settled, righteous opposition to all that is evil. Unlike human anger, which is often petty or irrational, God's wrath is the necessary response of a perfectly holy being to sin and injustice. It is not a loss of temper but a moral commitment. Romans 1:18 says the wrath of God 'is revealed from heaven against all ungodliness.' Yet God's wrath is always tempered by patience — 2 Peter 3:9 says he is 'not wishing that any should perish.' The cross is where wrath and mercy meet: Christ bore God's wrath so believers would not have to.
God's promises in the Bible include salvation through faith (John 3:16), eternal life (1 John 2:25), His constant presence (Hebrews 13:5), provision for needs (Philippians 4:19), peace in trials (John 16:33), answered prayer (1 John 5:14), and ultimate restoration (Revelation 21:4). Every promise finds its 'Yes' in Christ (2 Corinthians 1:20).
God shows justice throughout Scripture in three primary ways: punishing wickedness, defending the vulnerable, and restoring what was broken. He judged the world through the flood, delivered Israel from Egyptian oppression, punished Israel's own corruption through exile, and ultimately accomplished cosmic justice through the cross. The Psalms celebrate God as the judge who 'does not forget the cry of the afflicted' (Psalm 9:12). His justice is both retributive (consequences for sin) and restorative (making things right).
God's justice means he gives what is deserved — punishment for sin, reward for righteousness. God's mercy means he withholds deserved punishment and extends compassion instead. The tension between these attributes is one of the deepest questions in theology: how can a just God let sinners go free? The answer, according to Paul, is the cross. Romans 3:26 says God set forth Christ 'so that he might be just and the justifier of the one who has faith in Jesus.' At the cross, justice was fully satisfied and mercy was fully extended.
God's righteous judgment means he evaluates and renders verdicts with perfect fairness, complete knowledge, and unwavering moral integrity. Unlike human judges who can be deceived, bribed, or biased, God judges with full knowledge of every thought, motive, and action. Romans 2:5 warns of 'the day of wrath when God's righteous judgment will be revealed.' Revelation describes a final judgment where 'the dead were judged by what was written in the books, according to what they had done' (Revelation 20:12). God's judgment is both a warning and a comfort — a warning to the unjust and a comfort to the oppressed.
The Bible contains over 2,000 verses about the poor and God's concern for them. Proverbs 19:17 says whoever is generous to the poor 'lends to the Lord.' Jesus identified with the poor so completely that he said caring for them is caring for him (Matthew 25:40). The early church shared possessions so that 'there was not a needy person among them' (Acts 4:34). Helping the poor is not optional charity in Scripture — it is a defining mark of genuine faith.
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