Mercy and truth have met each other: justice and peace have kissed.

“"Mercy and truth have met together" (ver. 10). "Truth in our land," in a Jewish person, "mercy" in the land of the Gentiles. For where was truth? Where the utterances of God were. Where was mercy? On those who had left their God, and turned themselves unto devils. Did He look down also upon them? Yea, as if He said, Call those who are fugitives afar off, who have departed far from Me: call them, let them find Me who seek them, since they themselves would not seek Me. Therefore, "Mercy and truth have met together: righteousness and peace have kissed each other." Do righteousness, and thou shalt have peace; that righteousness and peace may kiss each other. For if thou love not righteousness, thou shalt not have peace; for those two, righteousness and peace, love one another, and kiss one another: that he who hath done righteousness may find peace kissing righteousness. They two are friends: thou perhaps willest the one, and not the other: for there is no one who wills not peace: but all will not work righteousness. Ask all men, Willest thou peace? With one mouth the whole race of man answers thee, I wish, I desire, I will, I love it. Love also righteousness: for these two, righteousness and peace, are friends; they kiss one another: if thou love not the friend of peace, peace itself will not love thee, nor come unto thee. For what great thing is it to desire peace? Every bad man longeth for peace. For peace is a good thing. But do righteousness, for righteousness and peace kiss one another, they quarrel not together....”

“Truth shall spring out of the earth,.... Either the Gospel, the word of truth, which sprung up at once in the land of Judea, as if it came out of the earth; and from Zion and Jerusalem it came forth into the Gentile world: or else the truth of grace God desires in the inward parts, and which springs up in such who are like cultivated earth, or good ground, being made so by the Spirit and grace of God, particularly the grace of "faith"; by which some render the word (q) here, which springs up in the heart, and, with it, man believes to righteousness: or rather Christ himself, "who is the way, the truth, and the life"; who, though he is the Lord from heaven, yet may be said, with respect to his incarnation, to spring out of the earth, he taking flesh of the virgin: hence his human nature is said to be "curiously wrought in the lowest parts of the earth"; and "that new thing created in the earth", Psa 139:15. and righteousness shall look down from heaven: the justice of God, or the righteous God, shall look down from heaven on Christ, the truth, in our nature on earth, with pleasure beholding his obedience, sufferings and death, sacrifice and righteousness; being well pleased with him, and with all he did and suffered, and with all his people, considered in him: these upright and righteous ones his countenance beholds with delight, as they are clothed with Christ's righteousness, washed in his blood, and their sins expiated by his sacrifice, and as they are hoping in his mercy, and trusting in his Son. (q) fides. Tigurine version, Musculus, Junius & Tremellius.”

“The poet pursues this charming picture of the future further. After God's אמת, i.e., faithfulness to the promises, has descended like dew, אמת, i.e., faithfulness to the covenant, springs up out of the land, the fruit of that fertilizing influence. And צדקה, gracious justice, looks down from heaven, smiling favour and dispensing blessing. גּם in Psa 85:13 places these two prospects in reciprocal relation to one another (cf. Psa 84:7); it is found once instead of twice. Jahve gives הטּוב, everything that is only and always good and that imparts true happiness, and the land, corresponding to it, yields יבוּלהּ, the increase which might be expected from a land so richly blessed (cf. Psa 67:7 and the promise in Lev 26:4). Jahve Himself is present in the land: righteousness walks before Him majestically as His herald, and righteousness ישׂם לדרך פּעמיו, sets (viz., its footsteps) upon the way of His footsteps, that is to say, follows Him inseparably. פּעמיו stands once instead of twice; the construct is to a certain extent attractional, as in Psa 65:12; Gen 9:6. Since the expression is neither דּרך (Psa 50:23; Isa 51:10) nor לדּרך (Isa 49:11), it is natural to interpret the expression thus, and it gives moreover (cf. Isa 58:8; Isa 52:12) an excellent sense. But if, which we prefer, שׂים is taken in the sense of שׂים לב (as e.g., in Job 4:20) with the following ל, to give special heed to anything (Deu 32:46; Eze 40:4; Eze 44:5), to be anxiously concerned about it (Sa1 9:20), then we avoid the supplying in thought of a second פעמיו, which is always objectionable, and the thought obtained by the other interpretation is brought clearly before the mind: righteousness goes before Jahve, who dwells and walks abroad in Israel, and gives heed to the way of His steps, that is to say, follows carefully in His footsteps.”