A question worth asking
It is a big question, and it deserves more than a quick slogan. People ask it for many reasons: wonder at the night sky, grief after losing someone, disappointment with religion, or a quiet sense that life must mean more than survival and success.
The Bible begins with God, not with an attempt to manufacture an argument. It presents him as the Maker of everything that exists. Psalm 19 says the skies continually point beyond themselves to their Creator, while Romans says that the created world gives real evidence of God's eternal power and divine nature (Psalm 19:1; Romans 1:20).
That does not mean every question disappears when you look at a mountain or a newborn child. It means the world is not presented as a closed room with no windows. It bears signs of its Maker.
The heavens declare the glory of God; and the firmament sheweth his handywork.
More than an idea
The God described in Scripture is not an impersonal force or a distant clockmaker. He speaks, creates, judges evil, shows mercy, and calls people into relationship with him. The opening words of Genesis place all things under the care and purpose of the Creator (Genesis 1:1).
The Bible also says people have an inner awareness of moral responsibility. Paul writes that even those without the law can show its work written in their hearts, with their thoughts accusing or defending them (Romans 2:14-15). Our conscience is not flawless, and cultures differ, but this moral awareness fits the Bible's picture that human beings are accountable to a holy God.
You may still wonder why a good God allows so much pain. That question matters, and Scripture does not brush it aside. It tells the story of a God who sees human suffering and who acts within history rather than standing coldly apart from it.
In the beginning God created the heaven and the earth.
Jesus is the clearest answer
For Christians, the central reason to take God's reality seriously is Jesus. The New Testament says God has made himself known through his Son, and that Jesus shows us what the Father is like (Hebrews 1:1-2; John 14:9).
Jesus did not merely offer spiritual advice. He welcomed outsiders, forgave sins, confronted hypocrisy, healed the hurting, and spoke about God as Father. Then he was crucified and, according to the witnesses, raised from the dead. Paul points to the resurrection appearances as central to the Christian message (1 Corinthians 15:3-5).
You do not have to pretend certainty you do not have. But it is fair to ask what best explains Jesus, his teaching, his death, and the confidence of those who said they saw him alive again.
God, who at sundry times and in divers manners spake in time past unto the fathers by the prophets, Hath in these last days spoken unto us by his Son, whom he hath appointed heir of all things, by whom also he made the worlds;
How to seek honestly
The Bible's invitation is not to switch off your mind. Test, ask, read, and bring your real doubts into the open. Jeremiah records God's promise that those who seek him with their whole heart will find him (Jeremiah 29:13).
A simple place to begin is one honest prayer: “God, if you are there, help me know you and lead me into truth.” Then read one of the Gospels, perhaps John, slowly. Notice who Jesus says God is, what he does with people, and what he asks of them.
Faith usually grows as a response to what God has shown, not as a leap into nonsense. Jesus says that those who want to do God's will will come to recognise whether his teaching is from God (John 7:17). Keep seeking. God is not offended by a sincere question.