Proverbs 23:15

Lay not wait. The wicked man is usually envious of the good man who enjoys the protection of the Lord. He often possesses a sinister desire to lead the righteous into sin so that they may be in as precarious a state as he himself. Further, the greedy man often seeks to deprive the innocent of their homes in order to gain an unjust profit. Those who prey upon the just are careless of the sorrow they cause or even take pleasure in it (see Prov. 1:11, 12; 4:16; Amos 8:5, 6).

Shall rejoice. The instructor of youth has many sad and trying hours as he seeks to train children, but there is rich reward in seeing the successful outcome in wise and kindly men.