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.

Romans 10:14

10:14 How are they to call on one they have not believed in? And how are they to believe in one they have not heard of? And how are they to hear without someone preaching to them?