Proverbs 27:17 KJV
Iron sharpeneth iron; so a man sharpeneth the countenance of his friend.
Proverbs 27:15–19 KJV Chapter Context
15
A continual dropping in a very rainy day and a contentious woman are alike.
16
Whosoever hideth her hideth the wind, and the ointment of his right hand, which bewrayeth itself.
17
Iron sharpeneth iron; so a man sharpeneth the countenance of his friend.
18
Whoso keepeth the fig tree shall eat the fruit thereof: so he that waiteth on his master shall be honoured.
19
As in water face answereth to face, so the heart of man to man.