The main problem with the question
Does God Exist? is that there are different ideas about what God is or could be. So I will examine multiple conceptions of God, not just one. If none of them stand up, then atheism will be justified, but if a single idea of God does stand up, even if all the rest fail, then some form of theism is justified, though it may be different from the theism you are accustomed to.
The Transcendental argument maintains that eternal conceptual truths require the existence of an eternal mind, which is understood to be God. I maintain that eternal truths, such as the laws of logic, are part of the fabric of reality, not conceptual truths in the sense Matt Slick intends. Read the article to learn in more detail why the Transcendental argument fails to prove God’s existence.
In a podcast I listened to, a Christian maintained that God is required for scientific laws, and an atheist maintained that scientific laws are not as real as the Christian understood them to be. I disagree with them both, and here I explain why God is not required for the existence of scientific laws.