When they, the Jews, unable to stand on their own legs, as men ready to fall, took hold of thee by thy hand; caught thine hand to lean on, as when besieged by the Chaldeans.
Thou didst break: it includes a designed and voluntary failure; Egypt would not support.
And rend all their shoulder; didst tear, and pierce, and wound arm and shoulder, didst them much mischief instead of benefiting them, as thou hadst promised, Jer_37:7 42:17.
When they leaned, & c.; the same thing in words little different.
The loins are the strength of a man: thou hast put them to use all their strength to repel the enemy, thou hast been chief occasion of their engaging against.