In the first ways, which David walked in before he fell into those horrid sins of murder and adultery. Or, in the ways of David, and his father's first ways. For the beginning of Asa's reign was laudable, as we have seen, though he declined at last. For it seems more probable that this passage is a reflection upon Asa, whose last ways were much his worst, and of whose repentance we have no evidence, than upon David, who, though he fell dreadfully in the matter of Uriah, yet did manifestly repent of it, and return to his first and holy course of life, in which also he continued until death; having this character given him by the Holy Ghost after his death, that he did right in all things, saving that of Uriah, 1 Kings 15:5.
Related Commentaries of 2 Chronicles 17:3
2 Chronicles 17:3
3 And the LORD was with Jehoshaphat, because he walked in the first ways of his father David, and sought not unto Baalim;