How do we know God's existence is true?

Scripture presents God's existence as a foundational truth rather than something that requires proof. In Genesis 1:1, the opening words 'In the beginning, God' establish Him as the ultimate reality and cause of all existence. This declaration does not attempt to convince skeptics but rather assumes God's existence as innate knowledge within humanity, as Romans 1:19-20 teaches that God's invisible attributes are clearly perceived in creation. Therefore, we understand God's existence not only through faith but through the testimonies of creation and revelation within His Word.