Arcana Coelestia # 9808
9808. From the midst of the sons of Israel. That this signifies in heaven and in the church, is evident from the signification of “Israel,” as being those who are of the church, thus abstractedly the church itself (see n. 4286, 6426, 6637, 6862, 6868, 7035, 7062, 7198, 7201, 7215, 7223, 8805, 9340); and as “Israel” denotes the church, it also denotes heaven, for heaven and the church make one, and the church is the heaven of the Lord on earth. Moreover, heaven is within every member of the church when he is in truth and at the same time in good from the Lord.
Numbers 3:12-13
12
"Behold, I have taken the Levites from among the children of Israel instead of all the firstborn who open the womb among the children of Israel; and the Levites shall be mine:
13
for all the firstborn are mine. On the day that I struck down all the firstborn in the land of Egypt I made holy to me all the firstborn in Israel, both man and animal. They shall be mine. I am Yahweh."