Cross reference
Psalms 129:3
3 The plowers plowed on my back. They made their furrows long.
Isaiah 51:23
23 and I will put it into the hand of those who afflict you, who have said to your soul, Bow down, that we may go over; and you have laid your back as the ground, and as the street, to those who go over.
Psalms 141:7
7 "As when one plows and breaks up the earth, Our bones are scattered at the mouth of Sheol."