Matthew Henry Commentary Psalms 144:9-15

"I will sing a new song unto thee, O God: Upon a psaltery of ten strings will I sing praises unto thee. Thou art he that giveth salvation unto kings; Who rescueth David his servant from the hurtful sword. Rescue me, and deliver me out of the hand of aliens, Whose mouth speaketh deceit, And whose right hand is a right hand of falsehood. When our sons shall be as plants grown up in their youth, And our daughters as corner-stones hewn after the fashion of a palace; [When] our garners are full, affording all manner of store, [And] our sheep bring forth thousands and ten thousands in our fields; [When] our oxen are well laden; [When there is] no breaking in, and no going forth, And no outcry in our streets: Happy is the people that is in such a case; [Yea], happy is the people whose God is Jehovah." — Psalms 144:9-15 (ASV)

Fresh favors call for fresh returns of thanks; we must praise God for the mercies we hope for by His promise, as well as those we have received by His providence. To be saved from the hurtful sword, or from wasting sickness, without deliverance from the dominion of sin and the wrath to come, is only a small advantage. The public prosperity David desired for his people is stated.

It adds much to the comfort and happiness of parents in this world to see their children likely to do well: to see them as plants, not as weeds, not as thorns; to see them as plants growing, not withered and blasted; to see them likely to bring forth fruit to God in their day; to see them in their youth growing strong in the Spirit. Plenty is to be desired, so that we may be thankful to God, generous to our friends, and charitable to the poor; otherwise, what profit is it to have our granaries full?

Also, uninterrupted peace. War brings an abundance of harms, whether it is to attack others or to defend ourselves. And to the extent that we do not adhere to the worship and service of God, we cease to be a happy people. The subjects of the Savior, the Son of David, share the blessings of His authority and victories, and are happy because they have the Lord for their God.