John Calvin Commentary Psalms 37:26

"All the day long he dealeth graciously, and lendeth; And his seed is blessed." — Psalms 37:26 (ASV)

He is daily merciful. The Psalmist here repeats what he had already said: that the grace of God is a fountain of all blessings that can never be exhausted. Therefore, while it is displayed towards the faithful, they not only have enough for the supply of their own wants but are also able to assist others liberally.

What he adds concerning their seed is variously interpreted. That he is speaking of the children of the godly, there can be no doubt, and this is evident from the preceding verse. But when he says that they shall be for blessing, some understand it as if he had said they will be the ministers of God’s liberality, so that, according to them, the meaning would be that they will follow the good example of their fathers in helping the poor and in exercising liberality towards all people.

But I fear that this interpretation is too subtle. Nor do I accept the interpretation that has been given by others: that the meaning is that the grace of God will be so remarkably manifested towards the children of the godly that their names will be used in a form of prayer when prosperity and success are prayed for. This mode of expression, I concede, is to be understood this way in various places. But here, in my opinion, David intends nothing more than to extol the continuation of God’s favor from the fathers to their children, as if he had said, God’s blessing does not end with the death of the righteous person, but it extends even to his children. And there is indeed no inheritance more certain for our children to succeed to than when God, in the same way, receiving them into his fatherly favor, makes them partakers of his blessing.