…Jacob’s hip socket was wrenched as he wrestled with him…and he was limping on his hip. Jacob’s injury suggests that God did not fulfil His promise to Jacob that I will guard you wherever you go,Hizkuni explains that despite God’s promise Jacob was greatly afraid and since he showed a lack of faith in God’s promise this weakened the power of God’s promise. And this is the reason why: the children of Israel do not eat the sinew of the thigh which is by the hip socket to this day…to remind us that God’s promises to us are only as powerful as our belief in them.