Verse 4. - Let them now that fear the Lord say, that his mercy endureth forever. Let the real Israel, the true worshippers of Jehovah, those who worship him in spirit and in truth, set their seal also to the great confession, and solemnly sanction what the people and the priests have done.

118:1-18 The account the psalmist here gives of his troubles is very applicable to Christ: many hated him without a cause; nay, the Lord himself chastened him sorely, bruised him, and put him to grief, that by his stripes we might be healed. God is sometimes the strength of his people, when he is not their song; they have spiritual supports, though they want spiritual delights. Whether the believer traces back his comfort to the everlasting goodness and mercy of God, or whether he looks forward to the blessing secured to him, he will find abundant cause for joy and praise. Every answer to our prayers is an evidence that the Lord is on our side; and then we need not fear what man can do unto us; we should conscientiously do our duty to all, and trust in him alone to accept and bless us. Let us seek to live to declare the works of God, and to encourage others to serve him and trust in him. Such were the triumphs of the Son of David, in the assurance that the good pleasure of the Lord should prosper in his hand.Let them now that fear the Lord say, that his mercy endureth for ever. Not the proselytes to the Jewish religion only, but all that feared the Lord among all people, as Aben Ezra observes; such as fear the Lord and his goodness, and have had an experience of his grace and mercy, which has caused them to fear him; and to whom the mercy of God is great, and on whom it is from everlasting to everlasting; and therefore should speak well of it, and set their seal to it, that it abides for ever; see Psalm 103:11.