King David, the Bible says, edified himself when he was being chased by the enemy or when strife stirred in his home. Edify means to uplift the soul spiritually or morally. And, of course, King David used God’s words to do so.
Deuteronomy 11:18 of the Cambridge Edition of the King James Bible states:
Therefore shall ye lay up these my words in your heart and in your soul, and bind them for a sign upon your hand, that they may be as frontlets between your eyes.
God’s Word (1995) translation of Deuteronomy 11:18 makes the meaning of that scripture clear: