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 1:24

For "All human life is just like grass, and all its glory like the flower of grass. The grass dries up; the flowers drop off.

1 John 2:17

and the world is passing away and with it the evil longings it incites, but whoever perseveres in doing God's will lives on forever.

James 1:10

and the rich brother rejoice in his being on a level with the poor, because the rich will fade away like the flower of the grass.

1 Peter 4:7

But the end of everything on earth is near. So be serious and sober minded, that you may give yourselves to prayer.

Treasury of Scripture Knowledge

Summary

Whereas ye know not what shall be on the morrow. For what is your life? It is even a vapour, that appeareth for a little time, and then vanisheth away.

Bible References

A vapour

James 1:10
and the rich brother rejoice in his being on a level with the poor, because the rich will fade away like the flower of the grass.
1 Peter 1:24
For "All human life is just like grass, and all its glory like the flower of grass. The grass dries up; the flowers drop off.
1 Peter 4:7
But the end of everything on earth is near. So be serious and sober minded, that you may give yourselves to prayer.
1 John 2:17
and the world is passing away and with it the evil longings it incites, but whoever perseveres in doing God's will lives on forever.