Yea, you shall see your children's children, and peace upon Israel.
Read Chapter 128
Augustine of Hippo
8. For, "if in this life only," saith the Apostle, "we have hope in Christ, we are of all men most miserable." For what reason were the Martyrs condemned to beasts? What is that good? Can it be declared? by what means, or what tongue can tell it? or what ears can hear it? That indeed, "Neither ear hath heard, nor hath it entered into man's heart:" only let us love, only let us grow in grace: ye see, then, that battles are not wanting, and that we fight with our lusts. We fight outwardly with unbelieving and disobedient men; we fight inwardly with carnal suggestions and perturbations: we everywhere as yet fight. ...What sort of peace then is this? One from Jerusalem, for Jerusalem is interpreted, A vision of Peace. Thus then "mayest thou see the good things that are of Jerusalem," and that, "all thy life long-and mayest thou see," not only thy children, but, "thy children's children." What meaneth, Thy children? Thy works which thou here dost. Who are thy children's children? The fruits...
Israel. This is best secured by a well-regulated and numerous people. (Berthier)
The good works, performed on earth, will be rewarded in heaven. (Worthington)
We shall rejoice in the spiritual children, whom we shall have begotten. (Menochius)