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TheologyBible questions & Scripture-grounded answers

18 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.

Key Scripture on Theology

Questions About Theology

What is grace?

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).

Ephesians 2:8-9Popular

What is the Sabbath?

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).

Exodus 20:8

Who is Jesus?

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.

John 1:14Popular

Did Jesus really exist?

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.

1 Corinthians 15:3-6

What is faith?

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.

Hebrews 11:1Popular

Are all religions the same?

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.

John 14:6

What is the Trinity?

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.

Matthew 28:19Popular

What are generational curses?

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).

Ezekiel 18:20

Is Jesus God?

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).

John 1:1Popular

What is hesed in the Bible?

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.

Psalm 136:1

What is the Bible?

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.

2 Timothy 3:16-17Popular

What does the Bible say about circumcision?

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.

Romans 2:29

What is the resurrection?

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.

1 Corinthians 15:17Popular

What is mercy in the Bible?

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).

Ephesians 2:4-5

Is the Bible true?

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.

John 17:17Popular

How do I know God is real?

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).

Romans 1:20Popular

What is God's 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.

Isaiah 30:18Popular

What are the promises of God?

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).

2 Corinthians 1:20Popular

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