Gregory the Dialogist

31. Mizpah, as I said, is interpreted as "watchtower." In the ordination of the king, the people are called to Mizpah, because those who come together to ordain a pastor of holy Church are taught to attend to his spiritual qualities, not his carnal ones. To watch, indeed, is to recognize the preacher to be ordained through the standard of sacred Scripture. For sacred Scripture is the mirror of the elect. A pastor is known as if through a mirror, when he is shown by his conduct to be such as is proclaimed in sacred eloquence. …

Commentary on 1 Kings, Book 4, Chapter 5 ↗