world and the devil combined, cannot do us so much harm as our own hearts will, if we do not watch and pray. Happy is he who remembers daily the words of Solomon, “He that trusteth in his own heart is a fool.” (Prov. 28:26.) 21 Then Jesus went thence, and departed into the coasts of Tyre and Sidon. 22 And, behold, a woman of Caanan came out of the same coasts, and cried unto him, saying, Have mercy on me, O Lord, thou Son of David; my daughter is grievously vexed with a devil. 23