Nature of God in Christianity

One God: power and love

Christians believe in one God, a belief called monotheism. Describing God's nature means explaining what God is like. Two central Christian beliefs are that God is omnipotent, meaning all-powerful, and omnibenevolent, meaning all-loving and infinitely good. These are not merely descriptions of a very powerful or very kind being: Christians understand God's power and goodness as unlimited.

The Bible is a sacred source of authority for Christians. Its accounts of God's actions, and its descriptions of God's character, provide the basis for these beliefs. They also influence how Christians live: belief in God's power encourages trust and prayer, while belief in God's love encourages compassion towards others.

God's power in Exodus

Exodus describes Moses confronting Pharaoh, the ruler of Egypt, to secure the release of the Israelites. Exodus 7–11 recounts plagues and warnings through which God demonstrates power over Egypt and the natural world. For example, God brings locusts that consume the remaining crops, then removes them by changing the wind. Darkness covers Egypt for three days, while the Israelites have light where they live. Chapter 11 announces the final plague, the death of the firstborn.

For Christians, these events demonstrate that Pharaoh's earthly authority cannot overcome God's power. God controls forces that human rulers cannot command.

Exodus 14:21 gives another example. Moses stretches out his hand over the sea, but it is the Lord who drives the waters back with a strong east wind throughout the night, leaving dry land. The distinction matters: Moses acts as God's servant; God is the source of the power. Christians understand the dividing of the sea as evidence of God's authority over nature and ability to deliver his people.

God's love in Psalms, John and Romans

The biblical passages express God's love in different but connected ways:

• Psalm 86:15 describes God as “compassionate and gracious”, “slow to anger” and “abounding in love and faithfulness”. God is portrayed as merciful and patient, rather than eager to punish.
• John 3:16 teaches that God loved the world so much that he gave his “one and only Son”, so that those who believe in him may have eternal life. Christians understand Jesus' saving role as an expression of God's love for humanity.
• Romans 8:37–39 teaches that neither death nor life, nor anything else in creation, can separate believers from God's love in Christ Jesus. This offers reassurance that suffering does not mean God has abandoned them.

Together, these passages present love as part of God's character, expressed through action and continuing faithfulness. Christians may therefore pray for help during suffering and try to reflect God's love by supporting people in need.

Why suffering challenges these beliefs

The problem of evil asks how evil and suffering can exist if God is both all-powerful and all-loving. Suffering includes physical pain, bereavement and distress. Some suffering follows harmful human choices; other suffering, such as illness, does not appear to result from a person's wrongdoing.

The challenge traditionally associated with Epicurus is often called the Epicurean paradox. David Hume expresses it in Dialogues Concerning Natural Religion, introducing it as “Epicurus's old questions”:

Is he willing to prevent evil, but not able? then is he impotent. Is he able, but not willing? then is he malevolent. Is he both able and willing? whence then is evil?

Here, impotent means lacking power, malevolent means wishing evil, and “whence then is evil?” asks where evil comes from if God is both able and willing to prevent it. The argument connects three claims:

1. An all-powerful God would be able to prevent evil.
2. An all-loving God would want to prevent evil.
3. Evil and suffering nevertheless exist.

A critic argues that these claims conflict: if God cannot prevent evil, his power seems limited; if he can but will not, his goodness seems doubtful. Some people therefore see suffering as a reason to reject belief in an omnipotent and omnibenevolent God.

A Christian response challenges the assumption that a loving God must prevent every instance of suffering. God might have reasons for permitting suffering without either lacking power or ceasing to love. The question then becomes whether those reasons adequately explain the suffering people experience.

Christian responses and their difficulties

Free will is the ability to make genuine choices. Some Christians argue that God gives humans freedom rather than forcing them to behave well. People can misuse this freedom through sin, causing suffering through violence, cruelty or selfishness. On this view, allowing the possibility of wrongdoing makes genuine moral choice possible; it does not mean that God approves of wrongdoing.

This response helps explain suffering caused by human actions. However, it does not by itself explain suffering such as illness, or why innocent people must bear the consequences of others' choices.

Another response is that suffering can test faith and that God's purposes are beyond complete human understanding. Christians may trust God's love even when they cannot identify a reason for a particular tragedy. Romans 8 supports this confidence that hardship cannot separate believers from God's love.

A critic can reply that appealing to an unknown purpose does not explain why such severe suffering is necessary. A justified judgement should therefore weigh both the reassurance these beliefs offer and the questions they leave unanswered. Christians themselves can struggle with suffering while continuing to believe in God.

Job: a righteous person who suffers

The Book of Job directly challenges the idea that suffering always proves someone has done wrong. Job is wealthy and faithful, yet experiences the loss of his possessions and children, and later his health.

In Job 1:8–12, God describes Job as “blameless and upright”. Satan argues that Job is faithful only because God protects and blesses him: remove those blessings, and Job will curse God. God permits Satan to attack what Job has, but initially forbids him from harming Job himself. The passage presents suffering as a test of Job's faith, not punishment for a sin identified by God.

Job's friends later assume that he must have sinned to deserve his suffering. Job maintains his innocence and questions why he suffers. God eventually answers by drawing attention to divine wisdom and the limits of human understanding.

In Job 42:1–6, Job acknowledges God's power: “I know that you can do all things”. He also recognises that he has spoken about things he did not understand, and responds with humility and repentance. This does not overturn the opening description of him as upright or prove that his earlier suffering was deserved punishment.

Christians can learn from Job that good people may suffer, that suffering should not lead others to judge them as sinful, and that faith can continue alongside difficult questions. Some find hope in the later restoration of Job's fortunes. Others question why a loving God permitted the test at all: later blessings do not remove the reality of his earlier losses. Job therefore offers a response centred on trust and humility, rather than a simple explanation for every tragedy.

The Trinity: three persons, one God

Most Christians understand the one God as the Trinity: Father, Son and Holy Spirit. These are three distinct persons, yet each is fully God. They are not three separate gods, three portions of God or simply three names for the same person.

The Father is understood as the creator and heavenly Father. The Son is Jesus Christ, God in human form: this belief is called the incarnation. The Holy Spirit is God active in the world, guiding and supporting believers, and is also called the Paraclete, meaning helper or advocate. These descriptions help Christians understand the persons of the Trinity without dividing God into separate beings. Belief in Father, Son and Holy Spirit is expressed in the Apostles' Creed.

Jesus and the oneness of God

In John 10:30, Jesus says, “I and the Father are one.” Christians use this as a basis for belief in the unity of the Father and Son and Jesus' divine identity.

John 14:6–11 develops the relationship. Jesus calls himself “the way and the truth and the life”, saying that people come to the Father through him. When Philip asks to see the Father, Jesus replies that anyone who has seen him has seen the Father. He explains that he is in the Father and the Father is in him, and that the Father works through him.

For Trinitarian Christians, Jesus therefore reveals God rather than being merely an ordinary religious teacher. Yet the passage still distinguishes Jesus from the Father: unity does not erase their relationship as distinct persons. These passages particularly support the relationship between Father and Son; the full doctrine of the Trinity also includes the Holy Spirit.