'Gnaw' in the Bible

They are gaunt from lack and famine. They gnaw the dry ground, in the gloom of waste and desolation.

In the night season my bones are pierced in me, and the pains that gnaw me take no rest.

You shall even drink it and drain it out, and you shall gnaw the broken pieces of it, and shall tear your breasts; for I have spoken it, says the Lord Yahweh.