Now faith is the assurance of things hoped for, the conviction of things not seen. For by it the men of old received divine approval. By faith we understand that the world was created by the word of God, so that what is seen was made out of things which do not appear. By faith Abel offered to God a more acceptable sacrifice than Cain, through which he received approval as righteous, God bearing witness by accepting his gifts; he died, but through his faith he is still speaking. By faith Enoch was taken up so that he should not see death; and he was not found, because God had taken him. Now before he was taken he was attested as having pleased God. And without faith it is impossible to please him. For whoever would draw near to God must believe that he exists and that he rewards those who seek him.
–Hebrews 11:1-6