Romans 1:19-21

In reality, the truth of God is known instinctively, for God has embedded this knowledge inside every human heart. Opposition to truth cannot be excused on the basis of ignorance, because from the creation of the world, the invisible qualities of God’s nature have been made visible, such as his eternal power and transcendence. He has made his wonderful attributes easily perceived, for seeing the visible makes us understand the invisible. So then, this leaves everyone without excuse. Throughout human history the fingerprints of God were upon them, yet they refused to honor him as God or even be thankful for his kindness. Instead, they entertained corrupt and foolish thoughts about what God was like. This left them with nothing but misguided hearts, steeped in moral darkness.