|Matthew Henry's Concise Commentary|
89:15-18 Happy are those who so know the joyful sound of the gospel as to obey it; who experience its power upon their hearts, and bring forth the fruit of it in their lives. Though believers are nothing in themselves, yet having all in Christ Jesus, they may rejoice in his name. May the Lord enable us to do so. The joy of the Lord is the strength of his people; whereas unbelief dispirits ourselves and discourages others. Though it steals upon us under a semblance of humility, yet it is the very essence of pride. Christ is the Holy One of Israel; and in him was that peculiar people more blessed than in any other blessing.
Verse 18. - For the Lord is our Defence; and the Holy One of Israel is our King; literally, for to Jehovah belongs our shield, and to the Holy One of Israel belongs our king. The meaning seems to be that he who is Israel's king and shield - i.e., the Davidical monarch at the time - being under the constant protection of the Almighty, all must necessarily go well with the people at last.
Gill's Exposition of the Entire Bible
For the Lord is our defence,.... From all their enemies, being all around them, as a wall of fire to protect them, and as the mountains were round about Jerusalem, and being kept by his power as in a fortress, strong hold, or garrison, unto salvation; or our shield (f); see Psalm 84:9 as are his favour, righteousness, and salvation, Psalm 5:12 or "to the Lord belongs our defence or shield" (g) our protection and salvation is from him:
and the Holy One of Israel is our King; he who was to be, and is of Israel according to the flesh, and is holy in his nature, life, and office; he is King of saints, that rules over them, protects and defends them, and therefore they must be happy: or "to" or "with the Holy One of Israel is our king" (h); Christ is King of Zion by designation, appointment, and constitution, of God the Holy One of Israel, the holy God that has chosen Israel for his peculiar people; though it rather seems that Christ is the Holy One by what follows.
(f) "clypeus noster", Pagninus, Montanus, Vatablus, Tigurine version; "scutum nostrum", Junius & Tremellius, Piscator. (g) "Domino", Pagninus, Montanus. (h) "et sancto Israelis", Pagninus, Montanus.
Jamieson-Fausset-Brown Bible Commentary
18. (Margin). Thus is introduced the promise to "our shield," "our king," David.
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