Romans 1:5, 12, 20-21

Through Him we have received grace and apostleship for obedience to the faith among all nations for His name

that is, that I may be encouraged together with you by the mutual faith both of you and me.

For since the creation of the world His invisible attributes are clearly seen, being understood by the things that are made, even His eternal power and Godhead, so that they are without excuse, because, although they knew God, they did not glorify Him as God, nor were thankful, but became futile in their thoughts, and their foolish hearts were darkened.