Hebrews 11:13-16
These people all died victoriously as a result of their faith, although they did not receive the blessings promised; that is, because they really saw them in the far-off future and welcomed them, and so professed to be only foreigners and strangers here on earth.
James 4:14
although you do not have the slightest knowledge of tomorrow. What is the nature of your life? It is really nothing but a mist which appears for a little while and then disappears.
1 Peter 2:11
Dearly beloved, I beg you as aliens and exiles to keep on abstaining from the evil desires of your lower nature, because they are always at war with the soul.