25. The Lord is called the Son of Humanity when the subject is judgment. This we can tell from the following passages:

When the Son of Humanity comes in his glory, then he will sit on the throne of his glory and set the sheep on his right and the goats on the left. (Matthew 25:31, 33)

When the Son of Humanity sits on the throne of his glory, he will judge the twelve tribes of Israel. (Matthew 19:28)

The Son of Humanity is going to come in the glory of his Father, and then he will repay all people according to their deeds. (Matthew 16:27)

Be wakeful at every moment, so that you may be found worthy to stand before the Son of Humanity. (Luke 21:36)

The Son of Humanity is coming at an hour you do not expect. (Matthew 24:44; Luke 12:40)

The Father does not judge anyone; he has given all judgment to the Son, because he is the Son of Humanity. (John 5:22, 27)

The reason the Lord calls himself the Son of Humanity when the subject is judgment is that all judgment is executed according to the divine truth that is in the Word. He himself says in John that this is what judges everyone:

If people hear my words but do not believe, I do not judge them. I have not come to judge the world. The Word that I have spoken will judge them on the last day. (John 12:47-48)

And in another passage,

The Son of Humanity came not to condemn the world but so that the world would be saved through him. Those who believe in him are not condemned; but those who do not believe have already been condemned because they have not believed in the name of the only-begotten Son of God. (John 3:17-18)

See Heaven and Hell 545-550, 574 on the fact that the Lord never condemns anyone to hell or casts anyone into hell. Rather, evil spirits cast themselves in. The name of Jehovah, the Lord, or the Son of God means divine truth and therefore the Word as well, since this is from him and about him and therefore is he himself.