Israel in the original language means 'one contending as a prince with God', and these words mean in the internal sense that he overcame in the conflicts that accompany temptations; for it was through temptations and the conflicts which take place in temptations** that the Lord made His Human Divine, 1737, 1813, and elsewhere. And it is temptations and victories in temptations that make the spiritual man. This is why Jacob first received the name Israel after his wrestling - 'wrestling' meaning to undergo temptation, see 4274. It is well known that the Church, or the member of the Christian Church, calls itself Israel, but no one in the Church is an Israel except the one who has become a spiritual man through temptations. The name itself also implies the same. A subsequent confirmation of the fact that Jacob was to be called Israel was also given to him, as is clear from the following words further on,

And God appeared again to Jacob when coming from Paddan Aram, and blessed him; and God said to him, Your name is Jacob; your name will no longer be called Jacob, but Israel will be your name. And He called his name Israel. Gen. 35:9, 10.

From the Arcana Coelestia (Elliott) n. 4286