Arcana Coelestia # 4259
4259. 'And I will make your seed like the sand of the sea which cannot be counted for multitude' means the fruitfulness and multiplication then. This is clear from the meaning of 'seed' as faith that comes from charity, and also charity itself, dealt with in 1025, 1447, 1610, 2848, 3373; and 'making it like the sand of the sea which cannot be counted for multitude' obviously means the multiplication of these. 'Fruitfulness' is used in reference to the good of charity, and 'multiplication' to the truth of faith, 913, 983, 2846, 2847.
Genesis 17:7-8
7
I will establish my covenant between me and you and your seed after you throughout their generations for an everlasting covenant, to be a God to you and to your seed after you.
8
I will give to you, and to your seed after you, the land where you are traveling, all the land of Canaan, for an everlasting possession. I will be their God."
