Gregory the Dialogist

34. He made them all stand by tribes and families, so that he might consider them all, and having considered all, might choose the more suitable one. But since he himself had already known the king by the Lord's revelation, and had anointed him as ruler at His command, why is it that he is still sought out as one to be chosen through tribes and families? But the king had been found by the prophet alone. Therefore, the one already found is sought, so that he who had not been found by the people might be found by them. …

Commentary on 1 Kings, Book 4, Chapter 5 ↗