Augustine of Hippo

Now, as I said just a little while ago, Jacob was also called Israel, which was the name generally borne by the people descended from him. This name was given him by the angel who wrestled with him when Jacob was on his way back from Mesopotamia. This angel obviously presents a type of Christ. For the fact that Jacob "prevailed over" him (the angel, of course, being a willing loser to symbolize the hidden meaning) represents the passion of Christ, in which the Jews seemed to prevail over him. …

City of God 16.39 ↗

Hilary of Poitiers

Be with me now in thy faithful spirit, holy and blessed Patriarch Jacob, to combat the poisonous hissings of the serpent of unbelief. Prevail once more in thy wrestling with the Man, and, being the stronger, once more entreat His blessing. Why pray for what thou mightest demand from thy weaker Opponent? Thy strong arm has vanquished Him Whose blessing thou prayest. Thy bodily victory is in broad contrast to thy soul's humility, thy deeds to thy thoughts. …

On The Trinity 5.19 ↗

Bonaventure

This was also shown to blessed Francis, when in the rapture of contemplation on the lofty mountain — where I pondered in my mind these things which have been written — there appeared a Seraph with six wings affixed to a cross, as I and many others heard from his companion who was then with him there; where he passed over into God through the rapture of contemplation, and was set forth as an example of perfect contemplation, just as he had previously been of action, as another Jacob and Israel, so that through him God might invite all …

Itinerarium Mentis in Deum, Chapter 7 ↗