31 So Jehoshaphat ruled over the land of Judah. He was thirty-five years old when he became king, and he reigned in Jerusalem twenty-five years. His mother was Azubah, the daughter of Shilhi. 32 Jehoshaphat was a good king, following the ways of his father, Asa. He did what was pleasing in the Lord 's sight. 33 During his reign, however, he failed to remove all the pagan shrines, and the people never fully committed themselves to follow the God of their ancestors. 34 The rest of the events of Jehoshaphat's reign, from beginning to end, are recorded in which is included in 35 Some time later King Jehoshaphat of Judah made an alliance with King Ahaziah of Israel, who was very wicked. 36 Together they built a fleet of trading ships at the port of Ezion-geber. 37 Then Eliezer son of Dodavahu from Mareshah prophesied against Jehoshaphat. He said, "Because you have allied yourself with King Ahaziah, the Lord will destroy your work." So the ships met with disaster and never put out to sea.
Matthew Henry's Commentary on 2 Chronicles 20:31-37
Commentary on 2 Chronicles 20:31-37
(Read 2 Chronicles 20:31-37)
Jehoshaphat kept close to the worship of God, and did what he could to keep his people close to it. But after God had done such great things for him, given him not only victory, but wealth; after this, to go and join himself with a wicked king, was very ungrateful. What could he expect but that God would be angry with him? Yet it seems, he took the warning; for when Ahaziah afterward pressed him to join him, he would not, 1 Kings 22:49. Thus the alliance was broken, and the Divine rebuke had its effect, at least for a season. Let us be thankful for any losses which may have prevented the loss of our immortal souls. Let us praise the Lord, who sought after us, and left us not to perish in our sins.