James 4:17
So whoever knows the right thing to do and fails to do it, for him it is sin.
John 9:41
Jesus said to them, "If you were blind, you would have no guilt; but now that you say, 'We see,' your guilt remains.
Luke 12:47-48
And that servant who knew his master's will but did not get ready or act according to his will, will receive a severe beating.
John 13:17
If you know these things, blessed are you if you do them.
John 15:22
If I had not come and spoken to them, they would not have been guilty of sin, but now they have no excuse for their sin.
Romans 1:20-21
For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse.
Romans 1:32
Though they know God's decree that those who practice such things deserve to die, they not only do them but give approval to those who practice them.
Romans 2:17-23
But if you call yourself a Jew and rely on the law and boast in God
Romans 7:13
Did that which is good, then, bring death to me? By no means! It was sin, producing death in me through what is good, in order that sin might be shown to be sin, and through the commandment might become sinful beyond measure.
2 Peter 2:21
For it would have been better for them never to have known the way of righteousness than after knowing it to turn back from the holy commandment delivered to them.