Psalms 128:5,6 - Joseph Benson’s Commentary on the Old and New Testaments

The Lord shall bless thee out of Zion Where the ark of the covenant was, and where the pious Israelites attended to offer their devotions. He will bless thee with those spiritual and everlasting blessings which are to be had nowhere but in Zion, and from the God who dwells in Zion, blessings which flow, not from common providence, but from special grace, and with all other mercies which thou shalt ask of God in Zion. And thou shalt see the good of Jerusalem The prosperity of that city to which thou belongest, and which is the only seat of God's worship and special presence, and whose good, therefore, is very delightful to every pious Israelite, and upon whose peace and safety those of every citizen of it depend, as every seaman is concerned in the safety of the ship in which he sails. Thou shalt see thy children's children Thy family shall be built up and continued, and thou shalt have the pleasure of seeing it; and peace upon Israel Not only upon Jerusalem, and parts adjacent, but upon all the tribes and people of Israel. Thy private comforts shall not be allayed and imbittered by public troubles, but thou shalt see the welfare of God's church and of thy native country, which every man that fears God is no less concerned for than for the prosperity of his own family. For a good man can have little comfort in seeing his children's children, unless, withal, he sees peace upon Israel, and have hopes of transmitting the entail of religion, pure and entire, to those that shall come after him.