Jeremiah 31:12

Therefore they shall come and sing in the height of Zion,.... The Targum is,"in the mountain of the house of the sanctuary, which is built on Zion;''but though there be an allusion to the temple built on it, and which may be called the height of it; yet the church of Christ in Gospel times is meant; the city built on a hill, where the saints, enjoying Gospel ordinances, dwell on high, and have all suitable provisions made for them; and here being come freely and willingly, though brought by the Lord, and drawn by his grace, they "sing" the songs of electing, redeeming, calling, justifying, pardoning, and adopting grace; and which they will still do in a better manner, when they get to the height of Zion above:and shall flow together to the goodness of the Lord; to the perfection of his goodness, which is essential to him, infinite and eternal; and is diffusive and communicative, not only in a providential way, but in a way of grace and mercy; and especially in pardoning grace and mercy, which sensible sinners take notice of, and flee unto, and not their own merits; and who would faint under a sense of sin, without a sight of it; but this, viewed in such a light, makes all the perfections of God look amiable and lovely, which otherwise would be terrible; and encourages faith, hope, fear, and thankfulness: likewise to Christ, who is the goodness of the Lord; in whom his goodness is laid up; in whom it is proclaimed; through whom it is displayed; by whom it is communicated; who himself is the great gift of it, as well as he himself is good; and his goodness extends to his people, and to him sensible sinners apply for it: also to the goodness and fatness of the house and church of God; those rich provisions which are made in it for the comfort and refreshment of his people; hence it follows:for wheat, and for wine, and for oil, and for the young of the flock,and of the herd; not for temporal blessings, which are for the good of the body only; but for spiritual blessings, signified by these, which are for the good of the soul, as the next clause shows: "for wheat"; for the Gospel and the doctrines of it, which are the finest of the wheat; and are as preferable to false doctrines as chaff is to wheat, and are soul nourishing and strengthening; see Jer 23:28.