Jacob: the twin son of Isaac who fathered the twelve tribes, and, in poetry and prophecy, a name for the whole nation descended from him
The name belongs first to one man: the second-born twin of Isaac and Rebekah, who arrives with his hand clamped on his brother's heel. That detail is the point of the name. In Hebrew it sounds like the word for "heel" (עָקֵב) and like a verb for coming up behind someone and pushing him aside (עָקַב), and the story makes both meanings audible: the younger twin buys the birthright, takes the blessing meant for the elder, and then hears his cheated brother spit the name back at him.
From that man the name spreads outward, and the senses below simply track how far a given verse is looking:
- in the family stories it is the man himself, bargaining, fleeing, wrestling, burying his dead
- in the covenant promises it is the third name in a fixed list, the father to whom the land was sworn
- in worship it sits inside a title for God, who is called the God of Jacob and the Mighty One of Jacob
- in poetry and prophecy it becomes a name for the whole nation, set line by line beside Israel
That last use is the one that surprises readers. After the night of wrestling at the Jabbok the man is given a new name, Israel (יִשְׂרָאֵל), and yet the old name never goes away: the text keeps using both of him, and the poets keep using both of his descendants. When Balaam looks down on the camp, when Moses blesses the tribes, when Isaiah comforts the exiles, "Jacob" and "Israel" are two names for one people in the two halves of a single line. Prophets can also turn the old sound-play against that people, hearing in the honored name a charge of dealing crookedly.
What the name meant before the storytellers got hold of it is a separate question. Genesis is telling us what the name sounds like in Hebrew, not reporting where it came from, and most specialists in ancient names now think it began as a short prayer, something close to "may God protect," a clipped form of a longer name that said God outright. Both readings matter, and they matter differently: the prayer is most likely where the name came from, and the heel-grabbing is what the Bible makes of it.