Cross reference
Psalms 129:3
3 The plowers plowed upon my back; They made long their furrows.
Isaiah 51:23
23 and I will put it into the hand of them that afflict thee, that have said to thy soul, Bow down, that we may go over; and thou hast laid thy back as the ground, and as the street, to them that go over.
Psalms 141:7
7 As when one ploweth and cleaveth the earth, Our bones are scattered at the mouth of Sheol.