15. My son, if thy heart is wise, my heart shall also rejoice;
16. my kidneys shall also rejoice when thy lips speak right things.
17. Let not thy heart envy sinners, but persevere in the fear of the Lord all day long.
18. For surely there is an end, and thy hope shall not be cut off.
19. Hear thou, my son, and be wise, and straighten thy heart in the way.