Ecclesiastes 3:18-21

I said in mine heart concerning the estate of the sons of men, that God might manifest them, and that they might see that they themselves are beasts. {that God...: or, that they might clear God, and see, etc}

Psalms 39:5

Behold, thou hast made my days {as} an handbreadth; and mine age {is} as nothing before thee: verily every man at his best state {is} altogether vanity. Selah. {at...: Heb. settled}

Psalms 49:20

Man {that is} in honour, and understandeth not, is like the beasts {that} perish.

Psalms 82:7

But ye shall die like men, and fall like one of the princes.

Ecclesiastes 9:12

For man also knoweth not his time: as the fishes that are taken in an evil net, and as the birds that are caught in the snare; so {are} the sons of men snared in an evil time, when it falleth suddenly upon them.

James 1:10-11

But the rich, in that he is made low: because as the flower of the grass he shall pass away.

1 Peter 1:24

For all flesh {is} as grass, and all the glory of man as the flower of grass. The grass withereth, and the flower thereof falleth away: {For: or, For that}