Hebrews 11:1-6, 13-16

Now faith is assurance of things hoped for, a conviction of things not seen. For therein the elders had witness borne to them. By faith we understand that the worlds have been framed by the word of God, so that what is seen hath not been made out of things which appear. By faith Abel offered unto God a more excellent sacrifice than Cain, through which he had witness borne to him that he was righteous, God bearing witness in respect of his gifts: and through it he being dead yet speaketh. By faith Enoch was translated that he should not see death; and he was not found, because God translated him: for he hath had witness borne to him that before his translation he had been well-pleasing unto God: and without faith it is impossible to be well-pleasing unto him; for he that cometh to God must believe that he is, and that he is a rewarder of them that seek after him.

These all died in faith, not having received the promises, but having seen them and greeted them from afar, and having confessed that they were strangers and pilgrims on the earth. For they that say such things make it manifest that they are seeking after a country of their own. And if indeed they had been mindful of that country from which they went out, they would have had opportunity to return. But now they desire a better country, that is, a heavenly: wherefore God is not ashamed of them, to be called their God; for he hath prepared for them a city.