Yea, thou shalt see thy children's children - This is a continuation of the idea of blessedness as connected with a numerous posterity - an object of so much interest to the Hebrews (see the notes at Psalm 128:3), and having its foundation in our nature.
And peace upon Israel - See Psalm 125:5. As the crowning blessing; a blessing above that of success in worldly affairs; above that of seeing a numerous and happy posterity. The love of God is the supreme affection in the mind of a pious man; the desire that his cause may prosper and triumph is to him a supreme desire. Man is truly and completely blessed only in religion.

Yea, thou shalt see thy children's children - Thou shall not die till thou have seen thy family all settled in the world, and those of them who may be married blessed with children.
And peace upon Israel - This is the same conclusion as in Psalm 125:1-5; and should be translated, Peace be upon Israel! May God favor his own cause, and bless all his people!

Yea, thou shall see thy children's children,.... A numerous race of descendants from him, which are the crown and glory of old men, Proverbs 17:6; this is also true of Christ's spiritual children by his church in successive ages, Isaiah 59:21;
and peace upon Israel: all kind of prosperity, temporal and spiritual; peace, and abundance of it; as will be in the latter day, in the spiritual reign of Christ, Psalm 72:8. It may be considered as a wish or prayer, with which the psalm is concluded; let "peace be upon Israel" (a), as in Psalm 125:5; see Galatians 6:16.
(a) "pax sit super Israele", Cocceius; so Gejerus.

Long life crowns all other temporal favors. As Psalm 125:5, this Psalm closes with a prayer for peace, with prosperity for God's people.