'Feed' in the Bible

Thus says Yahweh concerning the prophets who lead my people astray; for those who feed their teeth, they proclaim, "Peace!" and whoever doesn't provide for their mouths, they prepare war against him:

Shepherd your people with your staff, the flock of your heritage, who dwell by themselves in a forest, in the midst of fertile pasture land, let them feed; in Bashan and Gilead, as in the days of old.