Who is God?

People have asked this question in every culture and century, because the answer changes everything else about life. If God exists and is who the Bible says he is, then you are not an accident, morality is not merely a matter of opinion, and death is not the end of the story. Scripture does not spend its opening pages arguing that God exists; it simply begins, “In the beginning, God created the heavens and the earth” (Genesis 1:1). The Bible treats the reality of God as the foundation on which everything else stands, and it invites you to know him rather than merely debate about him.

To ask “Who is God?” is really to ask what kind of universe you live in, and whether the one who made it can be known. The Bible answers with striking confidence: God is not a distant force or a vague spiritual energy. He is a person—infinite, yes, but also relational, speaking, promising, and acting in history. From Genesis to Revelation, the story of Scripture is the story of God making himself known to people like you.

When Moses asked God for his name at the burning bush, God answered, “I am who I am… I am has sent me to you” (Exodus 3:14). That name, often rendered “LORD” in small capitals in English Bibles, points to God’s self-existence. He does not derive his being from anything else. Every created thing owes its existence to something before it, but God simply is. He has no beginning, needs nothing to sustain him, and depends on nothing outside himself.

This self-existence is the root of every other truth about God. Because he is the uncaused source of all things, he is also the sovereign King over all he has made (Isaiah 46:9-10), the faithful covenant-keeper who cannot lie (Numbers 23:19), and the only proper object of worship (Exodus 20:3). To know God’s name is to know that he alone is God, and that everything else in the universe, including you, exists because he spoke it into being.

The Bible reveals God as triune: one God eternally existing in three persons—Father, Son, and Holy Spirit (Matthew 28:19; 2 Corinthians 13:14). This is not three gods, nor is it one God wearing three different masks at different times. Each person is fully God, distinct from the others, yet there is only one divine being. The Father is not the Son, the Son is not the Spirit, yet Father, Son, and Spirit together are the one true God.

This truth is mysterious, but it is not a contradiction, because Scripture never says God is one and three in the same sense. He is one in essence and three in person. The doctrine did not originate as a philosophical puzzle invented by the church; it grows directly out of how the Bible speaks of the Father, calls Jesus “God” (John 1:1), and describes the Spirit as a personal, divine agent who can be lied to (Acts 5:3-4). Knowing who God is means embracing this triune reality, even where it exceeds full human comprehension.

Scripture describes God’s character in rich, specific terms. He is holy, utterly set apart from sin (Isaiah 6:3). He is love, giving himself for those who did not deserve it (1 John 4:8). He is just, never overlooking wrong (Psalm 89:14). He is merciful, slow to anger and abounding in steadfast love (Exodus 34:6-7). These are not competing qualities that God must balance against one another; they are facets of one perfect, unified character. God is never more loving than he is holy, and never more just than he is merciful.

He is also infinite in ways no creature can be: all-knowing (Psalm 147:5), present everywhere at once (Psalm 139:7-10), and all-powerful (Jeremiah 32:17). Yet this infinite God is not cold or unreachable. He describes himself as a shepherd who carries his lambs close to his heart (Isaiah 40:11), a father who runs to meet his wayward child (Luke 15:20), and one who draws near to the brokenhearted (Psalm 34:18).

The clearest answer to “Who is God?” is a person: Jesus Christ. Hebrews calls Jesus “the radiance of God’s glory and the exact representation of his being” (Hebrews 1:3). Jesus himself told his disciples, “Anyone who has seen me has seen the Father” (John 14:9). In Jesus, the invisible God became visible, took on human flesh, lived among us, taught with authority, healed the sick, and ultimately died on a cross to pay for sin before rising bodily from the dead.

If you want to know what God is like, look at Jesus—his compassion for the outcast, his anger at injustice, his patience with the doubting, his willingness to suffer for people who had turned against him. God is not merely a concept to analyze; he is a person to know, and he has made himself known so that you can trust him rather than merely theorize about him.

Knowing who God is is not an academic exercise. Because God is holy, your sin matters and cannot simply be shrugged off. Because God is loving, he made a way for you to be forgiven through Jesus Christ, who died for sinners so that “everyone who believes in him shall not perish but have eternal life” (John 3:16). Because God is sovereign, your life is not adrift in randomness; it is held by a purposeful, good King.

The question “Who is God?” is ultimately an invitation. The God who spoke the universe into being also speaks to you through his word, and he wants to be known—not merely acknowledged from a distance, but trusted, loved, and followed. Whatever else you come to learn about theology, begin here: God is real, God is good, and God has made himself known so that you can find him.