2 Chronicles 17:19 - Wesley's Explanatory Notes

Waited — These above — mentioned were the trained bands or auxiliaries: whose chief officers waited on the king to receive his commands, and to raise, and bring in all, or part of their forces, to the service of the king as need required. A vast number for so small a compass of ground, to furnish out and maintain. But we may consider, that God had promised to make the seed of Abraham like the sand of the sea for number; that there had now been a long peace; that many were come to them from the kingdom of Israel and that Jehoshaphat was under a special blessing of God. They were doubtless dispersed all the country over, every one residing on his own land: only they were ready at call, whenever there was occasion.