(5) But I.--Emphatic, but as for me. The most complete peace has taken the place of the despair with which the psalm opens. The rhythm of the Hebrew seems to express the restfulness of the thought. "It hath a dying fall." The LXX. and Vulg. (comp. the Prayer Book version) have an additional clause not found in any MS., "Yea, I will praise the name of the Lord most high."

Verse 5. - But I have trusted (or, I trust) in thy mercy. I know, i.e., that thou wilt not suffer me to be overcome by my enemy. Thou wilt save me; and therefore my heart shall rejoice in thy salvation, whereof I entertain no doubt.

13:1-6 The psalmist complains that God had long withdrawn. He earnestly prays for comfort. He assures himself of an answer of peace. - God sometimes hides his face, and leaves his own children in the dark concerning their interest in him: and this they lay to heart more than any outward trouble whatever. But anxious cares are heavy burdens with which believers often load themselves more than they need. The bread of sorrows is sometimes the saint's daily bread; our Master himself was a man of sorrows. It is a common temptation, when trouble lasts long, to think that it will last always. Those who have long been without joy, begin to be without hope. We should never allow ourselves to make any complaints but what drive us to our knees. Nothing is more killing to a soul than the want of God's favour; nothing more reviving than the return of it. The sudden, delightful changes in the book of Psalms, are often very remarkable. We pass from depth of despondency to the height of religious confidence and joy. It is thus, ver. 5. All is gloomy dejection in ver. 4; but here the mind of the despondent worshipper rises above all its distressing fears, and throws itself, without reserve, on the mercy and care of its Divine Redeemer. See the power of faith, and how good it is to draw near to God. If we bring our cares and griefs to the throne of grace, and leave them there, we may go away like Hannah, and our countenances will be no more said, 1Sa 1:18. God's mercy is the support of the psalmist's faith. Finding I have that to trust to, I am comforted, though I have no merit of my own. His faith in God's mercy filled his heart with joy in his salvation; for joy and peace come by believing. He has dealt bountifully with me. By faith he was as confident of salvation, as if it had been completed already. In this way believers pour out their prayers, renouncing all hopes but in the mercy of God through the Saviour's blood: and sometimes suddenly, at others gradually, they will find their burdens removed, and their comforts restored; they then allow that their fears and complaints were unnecessary, and acknowledge that the Lord hath dealt bountifully with them.But I have trusted in thy mercy,.... The faith, hope, and comfort of the psalmist grew and increased by prayer; from complaining he goes to praying, from praying to believing; he trusted not in himself, not in his own heart, nor in his own righteousness and merits, but in the mercy of God; and not in the bare absolute mercy of God, but in the grace and goodness of God, as the word (x) here used signifies, as it is displayed in the plenteous redemption which is by Christ; which is a sufficient ground of faith and hope; see Psalm 130:7;

my heart shall rejoice in thy salvation; which God is the contriver, author, and giver of, and in which the glory of his perfections is so greatly displayed: and a true believer rejoices more on account that God is glorified by it than because of his own interest in it; and this joy is an inward one, it is joy in the heart, and is real and unfeigned, and is what continues, and will be felt and expressed both here and hereafter.

(x) "in bonitate tua", Vatablus; "in benignitate tua", Junius & Tremellius, Piscator; "in benignissima voluntate tua", Gejerus.