Romans 1:20

1:20 For since the creation of the world his invisible attributes – his eternal power and divine nature – have been clearly seen, because they are understood through what has been made. So people are without excuse.

Romans 2:1

The Condemnation of the Moralist

2:1 Therefore you are without excuse, whoever you are, when you judge someone else. For on whatever grounds you judge another, you condemn yourself, because you who judge practice the same things.