Psalms 21:10

10.Thou shalt destroy their fruit from the earth. David amplifies the greatness of God’s wrath, from the circumstance that it shall extend even to the children of the wicked. It is a doctrine common enough in Scripture, that God not only inflicts punishment upon the first originators of wickedness, but makes it even to overflow into the bosom of their children. (488) And yet when he thus pursues his vengeance to the third and fourth generation, he cannot be said indiscriminately to involve the innocent with the guilty. As the seed of the ungodly, whom he has deprived of his grace, are accursed, and as all are by nature children of wrath, devoted to everlasting destruction, he is no less just in exercising his severity towards the children than towards the fathers. Who can lay any thing to his charge, if he withhold from those who are unworthy of it the grace which he communicates to his own children? In both ways he shows how dear and precious to him is the kingdom of Christ; first, in extending his mercy to the children of the righteous even to a thousand generations; and, secondly, in causing his wrath to rest upon the reprobate, even to the third and fourth generation.