'Masters' in the Bible

“Wail, you shepherds, and cry;And wallow in ashes, you masters of the flock;For the days of your slaughter and your dispersions have come,And you will fall like a choice vessel.

“Flight will perish from the shepherds,And escape from the masters of the flock.

“Hear the sound of the cry of the shepherds,And the wailing of the masters of the flock!For the Lord is destroying their pasture,

Command them to go to their masters, saying, ‘Thus says the Lord of hosts, the God of Israel, thus you shall say to your masters,