https://youtu.be/atoAgkWV0UQ?si=eXbZaAhjaJgYiE_M Doubting the existence of something does not change the fact that it actually exists. Before anyone tells us the truth we need first tell it to ourselves. Some people mistake what they believe to be wisdom for ignorance. Let's start with the environmental factors. When we look around us there is no doubt that there is evil upon this earth. There are times we see or hear of diabolical incidents occuring. Now if there is evil don't you think it would be unfair if there isn't something that should counter it? It's just like believing in the existence of darkness but refusing to believe that there is light. As long as there is darkness there would surely be light. Secondly, the works of nature could not have just created itself, they were made by someone.
Deuteronomy 32:4-He is the Rock, his work is perfect: for all his ways are judgment: a God of truth and without iniquity, just and right is he.
Humans make mistake but that is never the case with God. With God there is no ounce of imperfection. One of the reasons to believe in is because it is considered as being wise, because proverbs 14:1 one says that it is only a fool that says there is no God, and the opposite of a fool is someone that is wise. Even the functionality of our being is another great evidence of God's existence because no science and technology receive credit for it. Many events that were predicted in God's Word is what we see playing out before our very eyes today. The devil's mission is to see that people are deceived into believing that there is no God but we should not give in into his schemes.