Vanity of External Beauty

Proverbs 31:30 
Charm is deceitful and beauty is passing [vain, empty, unsatisfying]

Ecclesiastes 1:14  
I have seen all the works that are done under the sun; and indeed, all is vanity and grasping for the wind.

Seeking things other than the kingdom of God and His righteousness (Mt.6:33) only results in chasing the wind.  Solomon realized this as seen in Ecclesiastes, and Proverbs also shows that outward beauty is a vain pursuit.  The transitory ends, but the eternal never disappoints.  This is why Jesus tells us to seek the things above where He and the Father are...

הבל habel; emptiness or vanity; figuratively, something transitory and unsatisfactory;