The Lord doth build up Jerusalem - He builds up the walls; he restores the city; he has caused the temple to be reconstructed. This language would be applicable to a return from the captivity. There may be an allusion here to the language in Psalm 102:16 : "When the Lord shall build up Zion, he shall appear in his glory." See the notes at that passage. What is there spoken of as what would be in the future is here spoken of as accomplished, and as a ground of praise.

He gathereth together the outcasts of Israel - Those who have been exiled from their native land, and who have been scattered as outcasts in a foreign country. This is appropriate language to use on the supposition that the psalm was composed after the return from the exile, for it is in such language that that return was predicted by the prophets. Isaiah 11:12 : "and he shall assemble the outcasts of Israel, and gather together the dispersed of Judah," etc. Isaiah 56:8 : "the Lord God which gathereth the outcasts of Israel," etc.

The Lord doth build up - The psalmist appears to see the walls rising under his eye, because the outcasts of Israel, those who had been in captivity, are now gathered together to do the work.

The Lord doth build up Jerusalem,.... Literally, after the Babylonish captivity, according to some; or rather when taken from the Jebusites by David; or spiritually the church, which is often called Jerusalem, even the Gospel church, of which Christ is the builder, his ministers are instruments, his people are the materials, and which, though now greatly fallen to decay, will be rebuilt by him in the latter day; when his work will be revived among his saints, his Gospel more powerfully preached, his ordinances more purely administered, and multitudes of souls converted; and which will be matter of praise and thanksgiving, as it is now matter of prayer; see Psalm 51:18;

he gathereth together the outcasts of Israel; the exiles from Babylon, as some; or rather such who in the times of the judges had been carried captive by their neighbours, or fled from their cities, in the times of Saul for fear of the Philistines, and who were gathered to their own country, cities, and houses, when David began to reign. Spiritually this regards the whole Israel of God, the elect of God, whether Jews or Gentiles, and the outcasts of them; so called, not because ever cast out or cast off by the Lord, being received into his favour, covenant, and church; but either because cast out of the company of profane men, as evil and unworthy; or cast out of Israel, the church of God, very justly, for offences given; but, being brought to repentance, are restored and gathered in again: or rather this may represent the Lord's people as in a state of nature, like the wretched infant cast out into the open field, scattered up and down in the world, in a state of distance from God, Christ, and his people; these are gathered by Christ in redemption, who came to seek and collect them together; and by his spirit in conversion, when he gathers them to himself, and into his fold; and this, as it is an occasion of joy to angels and saints, is matter of praise and thanksgiving to the outcasts themselves, thus gathered in. The Septuagint render it, to the dispersion or dispersed of Israel; see John 7:35.

The LORD doth build up {b} Jerusalem: he gathereth together the outcasts of Israel.

(b) Because the Lord is the founder of the Church, it cannot be destroyed, though the members of it are dispersed and seem as it were for a time to be cut off.

2. (Compare Ps 107:3; Isa 11:12).

147:1-11 Praising God is work that is its own wages. It is comely; it becomes us as reasonable creatures, much more as people in covenant with God. He gathers outcast sinners by his grace, and will bring them into his holy habitation. To those whom God heals with the consolations of his Spirit, he speaks peace, assures them their sins are pardoned. And for this, let others praise him also. Man's knowledge is soon ended; but God's knowledge is a dept that can never be fathomed. And while he telleth the number of the stars, he condescends to hear the broken-hearted sinner. While he feeds the young ravens, he will not leave his praying people destitute. Clouds look dull and melancholy, yet without them we could have no rain, therefore no fruit. Thus afflictions look black and unpleasant; but from clouds of affliction come showers that make the soul to yield the peaceable fruits of righteousness. The psalmist delights not in things wherein sinners trust and glory; but a serious and suitable regard to God is, in his sight, of very great price. We are not to be in doubt between hope and fear, but to act under the gracious influences of hope and fear united.