Hebrews 11:1-6

Now faith is the realization of what is hoped for, the proof of things not seen. For by this the people of old were approved. By faith we understand the worlds were created by the word of God, in order that what is seen did not come into existence from what is visible. By faith Abel offered to God a greater sacrifice than Cain, by which he was approved that he was righteous, because God approved him for his gifts, and through it he still speaks, although he is dead. By faith Enoch was taken up, so that he did not experience death, and he was not found, because God took him up. For before his removal, he had been approved as having been pleasing to God. Now without faith it is impossible to please him, for the one who approaches God must believe that he exists and is a rewarder of those who seek him.