4822. 'And he called his name Er' means the essential nature of that falsity. This is clear from the meaning of 'calling the name' as the essential nature, dealt with in 144, 145, 1754, 1896, 2009, 2724, 3006, 3421, namely the nature of the falsity of the Church, dealt with immediately above in 4821. The expression 'the nature of the falsity' is used because falsities differ from one another, even as truths do, so much so that the different types of falsity can hardly be counted; and each type of falsity has its own specific nature by which it is distinguished from any other. Common falsities reign among the wicked in every Church, but each person's falsity varies in keeping with the life he leads. The falsity which existed in the Jewish Church and is referred to here was falsity springing from the evil of self-love and of love of the world based on this, see 4818.

145. In the Word too 'name' means the essential nature of a real thing, and 'seeing and calling by name' knowing characters, as in Isaiah,

I will give you the treasures of darkness and the hoarded riches of secret places, that you may know that it is I, Jehovah, the one calling you by name, the God of Israel. For the sake of My servant Jacob, and of Israel My chosen, and I have called you by name, I have surnamed you, but you do not know Me. Isaiah 45:3-4.

Here 'calling by name' and 'surnaming' mean knowing his character beforehand. In the same prophet,

You will be called by a new name which the mouth of Jehovah will declare. Isaiah 62:2.

This stands for his becoming a different person, as is clear from what precedes and what follows these words. In the same prophet,

O Israel, fear not, for I have redeemed you, I have called you by your name, you are Mine. Isaiah 43:1.

This stands for knowing character. Again in the same prophet,

Lift up your eyes on high and see; who created these? He who brings out their host by number; He will call them all by name. Isaiah 40:26.

This stands for His knowing them all. In Revelation,

You have a few names in Sardis, who have not soiled their garments. He who conquers will be clad in white garments and I will not blot his name out of the book of life; and I will confess his name before My Father and before His angels. Revelation 3:4-5.

Elsewhere in the same book,

Whose names have not been written in the book of life of the Lamb. Revelation 13:8.

In these places 'names' is in no way used to mean names but people's characters. Nor in heaven do they know anyone's name, only his character.