2 Chronicles 12:12 - Joseph Benson’s Commentary on the Old and New Testaments

In Judah things went well Hebrew, There were good things. The meaning is either, 1st, Though there were many corruptions in Judah, yet there were also divers good things there, which were not in Israel, as the word, and ordinances, and pure worship of God, prophets and ministers of God's appointment, and divers truly religious people. And thus, this was an additional reason why God would not destroy them. Or, 2d, Notwithstanding this loss, they began to recruit themselves, and to regain some degree of their former prosperity. In Judah, things went ill when all the fenced cities were taken; but when they repented, the posture of the affairs altered, and things went well. If at any time things do not go so well as we could wish, yet we have reason to take notice of it with thankfulness, if they go better than they have done, and better than we expected or deserved, and to own God's goodness, if he do but grant us some deliverance.