Acts 14:17
and yet by His beneficence He has not left His existence unattested--His beneficence, I mean, in sending you rain from Heaven and fruitful seasons, satisfying your hearts with food and joyfulness."
Romans 1:19-21
because what may be known about Him is plain to their inmost consciousness; for He Himself has made it plain to them.
Romans 1:28
And just as they had refused to continue to have a full knowledge of God, so it was to utterly worthless minds that God gave them up, for them to do things which should not be done.
Romans 3:1-2
What special privilege, then, has a Jew? Or what benefit is to be derived from circumcision?