John Gill Bible Commentary

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 Psa 84:9 as are his favour, righteousness, and salvation, Psa 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.