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.

This term refers to good things we do for other people. Such actions are done sincerely without any expectations for something in return. This last part is a key component of the concept of good works as intentions really determine everything (See Arcana Coelestia 6393). The Lord flows into good works, and the person doing them moves to a higher spiritual state.

Good works are connected to faith. A life of faith requires one to perform good works. Otherwise, a person is not actually living a life of religion. This is shown at the very beginning of Doctrine of Life:

“Religion is all about how we live, and the religious way to live is to do good.”

Of course, there is a bit more nuance to the matter (e.g. what's really good? who is it good for? over what time range?) but that’s what is all comes down to – doing good.

(References: Arcana Coelestia 3147 [2]; Divine Love and Wisdom 214-215)

7004. 'And to put words in his mouth' means that the things he utters will go forth from the Divine Human. This is clear from the representation of 'Moses', who was to put words in Aaron's mouth, as the Lord's Divine Truth which goes forth from His Divine Human, dealt with already; and from the meaning of 'mouth' as voice and utterance, dealt with above in 6987, so that 'putting in the mouth' means giving to utter. But when the phrase is used in reference to the Lord it means to go forth, for the Word, uttered by a spirit or angel, goes forth from the Lord's Divine Human. For 'Aaron' represents teachings that present what is good and true, which are given utterance.

[2] The implications of all this are that from the Lord Divine Truth goes forth in direct and indirect ways. What goes forth directly is entirely beyond angels' power of understanding; but what goes forth by an indirect way is fully suited to angels in heaven and also to men on earth, for the way it takes passes through heaven and by going this way it takes on a nature appropriate for angels and a nature appropriate for men. But the Lord also flows directly into this truth and thereby leads angels and men not only indirectly but also directly, see 6058. For everything in general and in particular owes its existence to the Primary Being (Esse), and established order is such that the Primary Being in things derived from it is present indirectly and directly, and so is present in the last and lowest degree of order no less than in the first. For the Divine Truth itself is altogether the substance, whereas the things derived from it are nothing else than the subsequent forms that are given to that substance. From this it is also evident that the Divine also flows directly into every single thing; for all things have been created by Divine Truth, because Divine Truth is altogether the essence, 6880, and so is that from which all things receive their being. Divine Truth is what is called 'the Word' in John,

In the beginning was the Word, and the Word was with God, and the Word was God. All things were made through Him, and without Him nothing was made that was made. John 1:1, 3.

Through this kind of inflowing the Lord leads a person not only by the operation of His providence in a general way but also in every specific way, indeed in the most specific of all. This then is the reason why it is said that the things that are uttered will go forth from the Divine Human.

[3] I have been told from heaven, and led to perceive from actual experience, that the Lord flows in directly when He also does so indirectly, and so is present in the last and lowest degree of order no less than in the first. I have in addition been told and led to perceive that comparatively little is accomplished by indirect influx, that is, by influx through heaven and the angels there, and also that by direct influx the Lord simultaneously leads heaven and keeps every single thing there properly connected and ordered.