The words which I covenanted - The words stand more forcibly, because abruptly.
It is an exclamation which cannot be forced into any grammatical relation with the preceding. The more exact idiom would have been "Remember," "take to heart." But the prophet points to it the more energetically, because he casts it, as it were, into the midst, not bound up with any one verb. This would be the rather done in speaking to the people, as David to his followers (1-Samuel 30:23, which Ewald compares, Lehrb. n. 329. a. p. 811, ed. 8. and in his Die Proph. iii. 183. Only he, not very intelligibly, makes it a sort of oath, By the word, By that which the Lord hath given us. But he suggests the like broken sentence Zech. vii. 7), "That which the Lord hath given us and hath preserved us and given the company against us into our hands!" i. e., "Would you deal thus with it?" The abrupt form rejects it as shocking. So here, "The word which I covenanted with you," i. e. this, "I will be with you," was the central all-containing promise, to which God pledged Himself when He brought them out of Egypt. He speaks to them as being one with those who came up out of Egypt, as if they were the very persons. The Church, ever varying in the individuals of whom it is composed, is, throughout all ages, in God's sight, one; His promises to the fathers are made to the children in them. So the Psalmist says, "There" (at the dividing of the Red Sea and the Jordan) "do we rejoice in Him," as if present there; and our Lord promises to the Apostles, Matthew 28:20. "I am with you always even to the end of the world," by an ever-present presence with them and His Church founded by them in Him.
My Spirit abideth among you, - as the Psalmist says Psalm 102:27, "they (the heavens) perish and Thou abidest" Psalm 33:11, "The counsel of the Lord standeth forever" Psalm 111:3, "His righteousness endureth forever." The Spirit of God is God the Holy Spirit, with His manifold gifts. Where He is, is all good. As the soul is in the body, so God the Holy Spirit is in the Church, Himself its life, and bestowing on all and each every good gift, as each and all have need. As Paul says of the Church of Christ 1-Corinthians 12:4, 1-Corinthians 12:6, 1-Corinthians 12:11, "There are diversities of gifts, but the same Spirit; and there are diversities of operations, but it is the same God, who worketh all in all. All these worketh one and the self-same Spirit, dividing to every man severally as He will." But above and beyond all gifts He is present as the Spirit of holiness and love, making the Church and those in whom He individually dwells, acceptable to God. Special applications, such as "the Spirit of wisdom and might;" a spirit such as He gave to Moses to judge His people; the spirit of prophecy; or the spirit given to Bezaleel and Aholiab for the work of the sanctuary - these recognize in detail the one great truth, that all good, all wisdom, from least to greatest, comes from God the Holy Spirit; though one by one they would exclude more truth than they each contain.

According to the Word that I covenanted with you, when ye came out of Egypt,.... Or rather, "with the Word, in or with whom I covenanted" (g), &c. as some render it; that is, Christ, the essential Word, who was promised to the people of Israel at that time, Deuteronomy 18:15 and in whom all the promises are, and the covenant of grace itself; and which covenant was indeed made with him from eternity, but was made manifest, or more clearly manifest, to the Jewish ancestors, when they came out of Egypt: now it is here promised, for the encouragement of the Jews to go in the work of the Lord in building the temple, that this divine Word should be with them also, to counsel, assist, strengthen, and protect them; even he who went before their fathers in the wilderness in a pillar of cloud by day, and of fire by night; the Angel of God's presence, that redeemed, saved, and carried them all the days of old; the Word that was in the beginning with God, and was God; and by whom all things were created at first; and who would, as since he has, become flesh, and dwell among them, and appear in this very temple they were now building; and who will be with all his churches, ministers, and people, unto the end of the world:
so my Spirit remaineth among you: or rather, "and", or "also, my Spirit standeth", continueth "in the midst of you" (h); not only Jehovah the Father, and his divine Logos or Word, were with them; but his Spirit also, his Holy Spirit, the third Person in the Trinity, of which these words are a proof; the same Spirit which was in Moses and others in his time, for the building of the tabernacle, is now promised unto, and should continue with, the builders of this temple; as a Spirit of wisdom and counsel to direct them, and as a Spirit of might and power to strengthen and assist them: and so he is, and will be, in the churches of Christ, and in the midst of his people, to assist the ministers of the word in preaching, the people in hearing, praying, and praising; to carry on his own work in them; to be the Comforter of them, and the seal, earnest, and pledge of their future glory; nor does he, nor ever will he, depart from them; see Isaiah 59:21,
fear ye not: succeeding in the work, and finishing it; nor be dismayed at what the ancient people had said; nor be afraid of enemies, who did all they could to hinder and discourage them from going on with their work; and indeed there is no reason to fear, let the service be what it will the Lord employs his people in; if he, Father, Son, and Spirit, are with them; see Isaiah 41:10.
(g) "cum verbo quo pepigeram", Junius & Tremellius; "cum verbo illo quo pepigi", Varenius; approved of by Reinbeck, Append. Doctrin. de Accent. p. 76, 77. (h) "et Spiritus meus stat in medio vestri", Pagninus, Cocceius; "stana", Montanus; "Spiritus quoque meus stabit in medio vestrum", Vatablus.

According to the word that--literally, "(I am with you) the word (or thing) which I covenanted"; that is, I am with you as I covenanted with you when ye came out of Egypt (Exodus 19:5-6; Exodus 34:10-11). The covenant promise of God to the elect people at Sinai is an additional motive for their persevering. The Hebrew for to "covenant" is literally "to cut," alluding to the sacrificial victims cut in ratification of a covenant.
so--or, "and."
my Spirit remaineth among you--to strengthen you for the work (Haggai 1:14; Zac 4:6). The inspiration of Haggai and Zechariah at this time was a specimen of the presence of God's Spirit remaining still with His people, as He had been with Moses and Israel of old (Ezra 5:1; Isaiah 63:11).

My spirit - Of strength and courage, of wisdom and understanding.