This drama depicts Abraham's grandson's transformation from one grasping for blessings under the name Jacob, to one prevailing under God's blessings in the name of Isreal; he becoming the father of the nation chosen by God to produce God's Messiah or Christ. (
Mat 1:1) His new name of Israel
[meaning: Contender (Perseverer) with God] indicating God's blessing on Abraham's nation (Gen 22:15-18) through Jacob [or Israel]. Jacob's opponent was likely an angel, whose power must have been drastically limited by God, maybe based on Jacob's faith. [I personally wonder if it might have been, not a physical wrestling, but a verbal battle or discussion over spiritual matters. The hip injury might call that into question...] In any case, to bring their contest to an end, the angel touched Jacob's hip socked and put it out of joint. It caused a long term [I suspect minor] injury that reminded Israel all his first life [Will he still feel it when he's resurrected?...] of this wondrous meeting he had with יהוה. It became a reminder to the whole Nation of Israel... As a member of the "New Israel of God," is it a reminder for you? (Gal 3:26-29 of Gal 3:19-29)