Proverbs 27:17-19

Amplified Bible, Classic Edition

¹⁷ Iron sharpens iron; so a man sharpens the countenance of his friend [to show rage or worthy purpose].

¹⁸ Whoever tends the fig tree shall eat its fruit; so he who patiently and faithfully guards and heeds his master shall be honored.^(A)

¹⁹ As in water face answers to and reflects face, so the heart of man to man.