Jeremiah 14:20

(Verse 20.) We have known, Lord, our impieties and the iniquity of our fathers, for we have sinned against you. And He says, both we and our fathers have neglected the precepts of God with the same folly, and the measure of our ancestors has been fulfilled; so that whatever was lacking to them, may be fulfilled by our accumulation. Therefore, concerning Judah, it is said: Let the iniquity of his fathers be remembered before the Lord, and let not the sin of his mother be blotted out. Let them always be against the Lord: and let their memory be eradicated from the earth (Psalm 108:14).

He is saying, We and our ancestors have also neglected the precepts of God by the same insanity. The measure of our ancestors, therefore, is filled up in us, in such a way that whatever was coming due to them would be added to our measure. This is why it was said, concerning Judah: "May the Lord remember his fathers and may the sin of his mother not be forgotten! May they always be opposed to the Lord, and may their memory be eradicated from the earth!"