'Being sent' means coming forth, (or going forth), in the internal sense, as in John 17:8. In similar manner, it is said of the holy of the spirit, that it was 'sent,' that is, it goes forth from the divine of the Lord, as in John 15:26, 16:5, 7.

So, too, the prophets were called 'the sent,' because the words which they spoke went forth from the holy of the spirit of the Lord.

'To be sent,' as in Genesis 37:13, signifies teaching.

(Odkazy: Arcana Coelestia 2397; John 15:7)

2397. 'And Jehovah has sent us to destroy it' means that they must inevitably perish - these words being similar in meaning to the things stated above in 2395. By the pronoun 'us', that is, the men or the angels, is meant the Lord's Divine Human and His Holy proceeding, as shown above. By means of these the good were saved and the evil perished; though the latter in fact perished according to the law that evil itself destroyed them. And because they perished in this fashion, doing so as a result of the Lord's Coming into the world, it is said according to the appearance that they were sent to destroy them.

[2] Several times in the Word it is said of the Lord that He was 'sent from the Father', as is said here, 'Jehovah has sent us'. In every instance however 'being sent' means in the internal sense coming forth, as in John,

They have received and know in truth that I came forth from You, and they have believed that You sent Me. John 17:8.

Similarly elsewhere, as in the same gospel,

God did not send His Son into the world to judge the world, but that the world might be saved through Him. John 3:17.

In the same gospel,

He who does not honour the Son does not honour the Father who sent Him. John 5:23

Many other examples exist besides these, as in Matthew 10:40; 15:24; John 3:34; 4:34; 5:30, 36-38; 6:29, 39-40, 44, 57; 7:16, 18, 28-29; 8:16, 18, 29, 42; 9:4; 10 John 36; 11:41-42; 12:44-45, 49; 13:20; 14:24; 17:18; 20:21; Luke 4:43; 9:48; 10:16; Mark 9:37; Isaiah 61:1.

[3] The Holiness of the Spirit is in similar fashion spoken of as being sent, that is, as going forth from the Lord's Divine, as in John,

Jesus said, When the Paraclete comes, whom I shall send to you from the Father, even the spirit of truth who goes forth from the Father, He will bear witness to Me. John 15:26.

In the same gospel,

If I go away I will send the Paraclete to you. John 16:5, 7.

This is why the prophets were spoken of as being 'sent', for the words they uttered went forth from the Holiness of the Lord's Spirit. And because it is from Divine Good that all Divine Truth goes forth the expression 'to be sent' strictly speaking has reference to Divine Truth. What 'going forth' is, is also evident, namely that he who goes forth, or the thing that goes forth, is part of him from whom it goes forth.