(39) I will give them one heart, and one way.—The previous verse has described the restoration of Israel in the old familiar all-inclusive terms—“They shall be my people, and I will be their God” (Exodus 6:7; Deuteronomy 14:2; Hosea 2:23). Here a new feature is added. The prophet, in his vision of the future, in place of the discords of the present—some serving Jehovah, and some Baal and Molech; some urging submission to Babylon, and some intriguing with Egypt—sees a unity in faith showing itself in unity of action. The hope of Jeremiah has never yet been realised, but it has appeared as with a transfigured glory in the prayer of the Christ for His people that they “all may be one,” even as He and the Father are one (John 17:21-23), in the prayer of the Apostle, that all might be joined together “in the unity of the faith” (Ephesians 4:13). And that prayer also waits for its fulfilment, and receives only partial and (to use Bacon’s phrase) “germinant” accomplishments. “For ever” represents the Hebrew all the days.

32:26-44 God's answer discovers the purposes of his wrath against that generation of the Jews, and the purposes of his grace concerning future generations. It is sin, and nothing else, that ruins them. The restoration of Judah and Jerusalem is promised. This people were now at length brought to despair. But God gives hope of mercy which he had in store for them hereafter. Doubtless the promises are sure to all believers. God will own them for his, and he will prove himself theirs. He will give them a heart to fear him. All true Christians shall have a disposition to mutual love. Though they may have different views about lesser things, they shall all be one in the great things of God; in their views of the evil of sin, and the low estate of fallen man, the way of salvation through the Saviour, the nature of true holiness, the vanity of the world, and the importance of eternal things. Whom God loves, he loves to the end. We have no reason to distrust God's faithfulness and constancy, but only our own hearts. He will settle them again in Canaan. These promises shall surely be performed. Jeremiah's purchase was the pledge of many a purchase that should be made after the captivity; and those inheritances are but faint resemblances of the possessions in the heavenly Canaan, which are kept for all who have God's fear in their hearts, and do not depart from him. Let us then bear up under our trials, assured we shall obtain all the good he has promised us.One heart, and one way - Compare Jeremiah 3:13. Under the new covenant they will with one consent walk in the one narrow path of right-doing Matthew 7:14. Forever, i. e., every day, constantly.39. one heart—all seeking the Lord with one accord, in contrast to their state when only scattered individuals sought Him (Eze 11:19, 20; Zep 3:9).

for … good of them—(Ps 34:12-15).

I will give them one heart; I will give them union and concord, or a oneness of mind and judgment; as to the things of God, they shall not be some for superstitious and idolatrous worship, and some for my true worship. And one way; they shall all worship me according to the rule I have given them.

That they may fear me for ever; that they may worship me in truth, as a people that have a dread of me upon their hearts.

For the good of them, and of their children after them; this will be for the profit both of them and their posterity many days, even so long as they shall continue so to do.

And I will give them one heart and one way,.... "One" and the same heart; the same heart to one as to another; gracious souls, truly converted persons, be they Jews or Gentiles, have the same experience; they have all, more or less, a sight and sense of sin, and the evil of it; are brought off of their own righteousness; are led to Christ alone for life and salvation; are made partakers of precious promises; and all have their temptations, afflictions, and trials, and can sympathize with one another: and they have the same things put into their hearts; the laws of God are written there; the doctrines of the Gospel have a place there; Christ is formed in them; the graces of the Spirit are implanted, faith, hope, love, fear, humility, and other graces. Their heart, given them at conversion, is a sincere and upright heart, not a double one; they become Israelites indeed; their faith is unfeigned; their hope is devoid of hypocrisy; their love is without dissimulation; their repentance is genuine; and they serve God uprightly with true hearts. It is also single and alone for God; he has the whole of it; their understandings are enlightened with the knowledge of him; their affections and desires are towards him: their wills are subject to him; their eye is single to his glory; their hearts are not divided between him and another object of worship; and they are also one towards another, as the first Christians were of one heart and of one soul, Acts 4:32; and such a heart is a new heart, and the gift of God: "one way" is also promised: one way of salvation, which is Christ; the one and only way of access to God; of acceptance with him; of justification before him; and of forgiveness of sin; the only true way into a Gospel church state, and to eternal glory and happiness; and which is the more excellent way; the good old way; the new and living one: one way of worship may also be intended; one Lord is to be obeyed and worshipped; one doctrine and scheme of faith to be received; one baptism to be administered, in one and the same way, to one and the same subjects, and in one and the same name; one true spiritual manner of worship, all shall come into in the latter day; and there will be no more parties among those that are called Christians; the Jews, when converted, will have no divisions nor different denominations among them; see Ephesians 4:4, Zechariah 14:9;

that they may fear me for ever; both internally and externally; the one heart will be given them to fear and reverence him inwardly; and the one way of worship to fear or serve him outwardly, and in which they shall always continue; there will be no apostasy from the true grace of God, and no defection from his worship to superstition and idolatry:

for the good of them, and of their children after them; unity of heart; sincerity and uprightness of soul; a walking in the way of the Lord; having his fear before their eyes, and on their hearts, will issue in their spiritual good here, and in their eternal happiness hereafter; and even their posterity will reap some advantage by their good instructions and example.

And I will give them {t} one heart, and one way, that they may fear me for ever, for the good of them, and of their children after them:

(t) One consent and one religion, as in Eze 11:19,36:26.