4291. In the internal historical sense 'he said to him, What is your name? And he said, Jacob' means that they were the descendants of Jacob - together with their essential nature. This becomes clear from the meaning of 'name' as the essential nature, dealt with in 144, 145, 1754, 1896, 2009, 2724, 3006, and from the meaning of 'Jacob' as Jacob's descendants, dealt with above in 4281.

3006. These are the things that angels perceive when the names Jesus Christ are used, and the things that are meant by its being said that in no other name is there salvation, and by what the Lord stated so many times concerning His name, as in John,

Whatever you ask in My name, I will do. John 14:13-14.

In the same gospel,

These things have been written that you may believe that Jesus is the Christ, the Son of God, and that believing you may have life in His name. John 20:31.

And elsewhere. 'His name' means everything in its entirety by which the Lord is worshipped, and so the essential nature of all worship and doctrine, see 2724. Here therefore the good of love and charity is meant when joined to the truth of faith, which constitutes the fabric of doctrine and worship in their entirety.