New Revised Standard Version
Turn away from mortals, who have only breath in their nostrils, for of what account are they?

Contemporary English Version
Stop trusting the power of humans. They are all going to die, so how can they help?

New American Bible
As for you, stop worrying about mortals, in whose nostrils is but a breath; for of what worth are they?

Douay-Rheims Bible
Cease ye therefore from the man, whose breath is in his nostrils, for he is reputed high.

Cease ye therefore from the man, whose breath is in his nostrils, for he is reputed high.

cease

Psalm 62:9 But vain are the sons of men, the sons of men are liars in the balances: that by vanity they may together deceive.

Psalm 146:3 In the children of men, in whom there is no salvation.

Jeremiah 17:5 Thus saith the Lord: Cursed be the man that trusteth in man, and maketh flesh his arm, and whose heart departeth from the Lord.

whose

Genesis 2:7 And the Lord God formed man of the slime of the earth: and breathed into his face the breath of life, and man became a living soul.

Genesis 7:22 And all things wherein there is the breath of life on the earth, died.

Job 27:3 As long as breath remaineth in me, and the spirit of God in my nostrils,

for wherein

Job 7:15-21 So that my soul rather chooseth hanging, and my bones death. . . .

Psalm 8:4 What is man, that thou art mindful of him? or the son of man, that thou visitest him?

Psalm 144:3,4 Lord, what is man, that thou art made known to him? or the son of man, that thou makest account of him? . . .