Job 30:4

They pluck salt-wort by the bushes; And the roots of the broom are their food.

2 Kings 4:38-39

And Elisha came again to Gilgal. And there was a dearth in the land; and the sons of the prophets were sitting before him; and he said unto his servant, Set on the great pot, and boil pottage for the sons of the prophets.

Amos 7:14

Then answered Amos, and said to Amaziah, I was no prophet, neither was I a prophet's son; but I was a herdsman, and a dresser of sycomore-trees:

Luke 15:16

And he would fain have filled his belly with the husks that the swine did eat: and no man gave unto him.

Treasury of Scripture Knowledge

Summary

Who cut up mallows by the bushes, and juniper roots for their meat.

Bible References

For their meat

2 Kings 4:38
And Elisha came again to Gilgal. And there was a dearth in the land; and the sons of the prophets were sitting before him; and he said unto his servant, Set on the great pot, and boil pottage for the sons of the prophets.
Amos 7:14
Then answered Amos, and said to Amaziah, I was no prophet, neither was I a prophet's son; but I was a herdsman, and a dresser of sycomore-trees:
Luke 15:16
And he would fain have filled his belly with the husks that the swine did eat: and no man gave unto him.

American Standard Version Public Domain