Arcana Coelestia#8650
8650. 'Of whom the name of one was Gershom (for he said, I have been a sojourner in a foreign land)' means the essential nature of the good of truth of those outside the Church. This is clear from the meaning of 'the name' and 'calling the name' as the essential nature, dealt with in 144, 145, 1754, 1896, 2009, 2724, 3006, 3421, 6674. That essential nature is described by the words uttered by Moses then, which were, I have been a sojourner in a foreign land. The reason why these words mean the good of truth of those outside the Church is that 'a sojourner'' means those who were born outside the Church, yet were receiving instruction in things of the Church; and 'a foreign land' means a place where the Church does not exist. For the meaning of 'a sojourner' as those who were born outside the Church and were receiving instruction in things of the Church, see 1463, 4444, 7908, 8007, 8013. The reason why 'a foreign land' is where the genuine Church does not exist is that 'land' or 'earth' means the Church, 662, 1067, 1262, 1733, 1850, 2117, 2118 (end), 2928, 3355, 4447, 4535, 5577, and 'foreign' a place where what is genuine does not exist; for the Lord's Church is spread throughout all lands, and so exists also among gentiles, 2049, 2284, 2589-2604. Furthermore when Gershom was born Moses was outside his own Church, among those with whom the good of simple truth existed, who are meant by 'the Midianites', see 6793-6796.
Arcana Coelestia#3421
3421. 'And he called them names' means the essential nature of them. This is clear from the meaning of 'calling the names' as the essential nature, dealt with in 144, 145, 1754, 1896, 2009, 2724, 3006, 3237. And since calling the names or the name means the essential nature, the expression calling without the addition of 'the name' therefore means in the internal sense of the Word to be of some such particular nature, as in Isaiah,
Hear this, O house of Jacob, who are called by the name of Israel and who came out of the waters of Judah. For they are called after the city of holiness, and upon the God of Israel they place their reliance. Isaiah 48:1-2.
Here 'being called after the city of holiness' stands for being of some particular nature. And in Luke,
Behold, you will conceive in the womb and will bear a son, and you will call His name Jesus. He will be great and will be called Son of the Most High. Luke 1:31-32.
'Being called Son of the Most High' stands for His Essential Being (Esse).