In context
16restraining her is restraining the wind, or catching oil in your right hand. 17Iron sharpens iron, and one man sharpens the face of another. 18Whoever tends a fig tree will eat its fruit, and whoever guards his master will be honored. 19As water gives face back to face, so one human heart gives back another. 20Sheol and Abaddon are never full, and the eyes of a man are never full.
