Charles H. Spurgeon on Psalms 37:26

He is ever merciful, and lendeth. The righteous are constantly under generous impulses; they do not prosper through parsimony, but through bounty. Like the bounteous giver of all good, of whom they are the beloved sons, they delight in doing good. How stingy covetous professors can hope for salvation is a marvel to those who read such verses as this in the Bible. And his seed is blessed. God pays back with interest in the next generation. Where the children of the righteous are not godly, there must be some reason for it in parental neglect, or some other guilty cause. The friend of the father is the friend of the family. The God of Abraham is the God of Isaac and of Jacob.

Verses 27-29. Here we have the seventh precept, which takes a negative and positive form, and is the quintessence of the entire Psalm