9373. Come up unto Jehovah. That this signifies conjunction with the Lord, is evident from the signification of “coming up,” as being to be raised toward interior things (see n. 3084, 4539, 4969, 5406, 5817, 6007), consequently also to be conjoined (n. 8760). That it denotes conjunction with the Lord, is because by “Jehovah” in the Word is meant the the Lord, (n. 1343, 1736, 1793, 2004, 2005, 2018, 2025, 2921, 3023, 3035, 5663, 6280, 6303, 6905, 8274, 8864, 9315). A secret which also lies hidden in the internal sense of these words, is that the sons of Jacob, over whom Moses was the head, were not called and chosen; but they themselves insisted that Divine worship should be instituted among them (according to wh at has been said in n. 4290, 4293); and therefore it is here said, “and He said unto Moses, Come up unto Jehovah,” as if not Jehovah, but another, had said that he should come up. For the same reason in what follows it is said that “the people should not go up” (verse 2); and that “Jehovah sent not His hand unto the sons of Israel who were set apart” (verse 11); and that “the appearance of the glory of Jehovah was like devouring fire on the top of the mountain in the eyes of the sons of Israel” (verse 17); and lastly that Moses, being called the seventh day, “entered into the midst of the cloud.” For by “the cloud” is meant the Word in the letter (n. 5922, 6343, 6752, 6832, 8106, 8443, 8781); and with the sons of Jacob the Word was separated from its internal sense, because they were in external worship without internal, as can be clearly seen from the fact that now, as before, they said, “all the words which Jehovah hath spoken we will do” (verse 3); and yet scarcely forty days afterward they worshiped a golden calf instead of Jehovah; which shows that this was hidden in their hearts while they were saying with their lips that they would serve Jehovah alone. But nevertheless those who are meant by “the called and the chosen” are those who are in internal worship, and who from internal worship are in external; that is, those who are in love to and faith in the Lord, and from this in love toward the neighbor.

140. Now because the Holy Spirit means the Divine truth, and this was in the Lord Himself and was the Lord Himself (John 14:6), and so because the Holy Spirit could not proceed from any other source, it is said:

The Holy Spirit was not yet, because Jesus was not yet glorified, John 7:39.

and after His glorification:

He breathed on His disciples and said, Receive the Holy Spirit, John 20:22.

The reason why the Lord breathed on the disciples and said this was that breathing on was the external sign standing for inspiration by God; and inspiration means being brought into contact with communities of angels. This will allow the understanding to grasp what the angel Gabriel said about the Lord's conception:

The Holy Spirit will come upon you, and the power of the Most High will overshadow you; so that the holy thing that is born of you will be called the Son of God, Luke 1:35.

Also:

The angel of the Lord said to Joseph in a dream, Do not be afraid to take Mary as your betrothed, for what is conceived in her is of the Holy Spirit; and Joseph did not touch her until she had given birth to her first-born son, Matthew 1:20, 25.

The Holy Spirit stands there for the Divine truth proceeding from Jehovah the Father; it was this that came forth which was 'the power of the Most High' which overshadowed His mother. So this statement tallies with what John says:

The Word was with God, and the Word was God; and the Word was made flesh, John 1:1, 14.

For a demonstration that the Word there means the Divine truth see the Faith of the New Church (3 above).