'Words,' as in Exodus 34:28, signify everything pertaining to doctrine.

In Genesis 15:1, words signify revelation, after the Lord's boyhood combats. (Arcana Coelestia 1787)

Words signify things, and things are goods and truths. (Arcana Coelestia 1785, 1801, 5272)

In Genesis 11:1, this signifies unity of doctrine. (Arcana Coelestia 1288)

In Exodus 8:10, 13, words signify communication of the Lord's Word and confirmation. (Arcana Coelestia 7406)

In Exodus 20:1, this signifies divine truths for people who are in the heavens and on earth. (Arcana Coelestia 8861, 8862)

7406. 'And Jehovah did according to the word of Moses' means that it was so done according to the Lord's word, for although what Moses pleaded for came out of the mouth of Moses it nevertheless originated with the Lord. For whatever a person thinks and then speaks, and whatever he wills and then does, flows into him. A person is merely a receiving organ, see 6189-6215, 6307, 6327, 6466-6495, 6598-6606, 6613-6626; and so was Moses in the things that he spoke and did. This is why what is said here - 'Jehovah did according to the word of Moses' - means that it was so done in accordance with the Lord's word, Jehovah' in the Word being the Lord, see 1343, 1736, 2921, 3023, 3035, 5663, 6281, 6303, 6905.