Psalms 106:6

But let us hear what they next confess: "we have sinned with our fathers: we have done amiss, and dealt wickedly" [Psalm 106:6]. What means "with our fathers"?..."Our fathers," he says, "regarded not Your wonders in Egypt" [Psalm 106:7]; and many other things also, he does relate of their sins. Or is, "we have sinned with our fathers," to be understood as meaning, we have sinned like our fathers, that is, by imitating their sins? If it be so, it should be supported by some example of this mode of expression: which did not occur to me when I sought on this occasion an instance of any one saying that he had sinned, or done anything, with another, whom he had imitated by a similar act after a long interval of time. What means then, "Our fathers understood not Your wonders;" save this, they did not know what You wished to convince them of by these miracles? What indeed, save life eternal, and a good, not temporal, but immutable, which is waited for only through endurance? For this reason they impatiently murmured, and provoked, and they asked to be blessed with present and fugitive blessings, "Neither were they mindful of the greatness of Your mercy." He reproves both their understanding and memory. Understanding there was need of, that they might meditate unto what eternal blessings God was calling them through these temporal ones; and of memory, that at least they might not forget the temporal wonders which had been wrought, and might faithfully believe, that by the same power which they had already experienced, God would free them from the persecutions of their enemies; whereas they forgot the aid which He had given them in Egypt, by means of such wonders, to crush their enemies. […]

We have sinned with our fathers,.... Sinned in their first father Adam; derived a corrupt nature from their immediate ancestors; sinned after the similitude of their transgressions; sinned after their example, in like manner as they did; guilty of the same gross enormities as they were: though sufficiently warned by the words of the prophets, and by punishments inflicted, they continued their sins, a constant series and course of them, and filled up the measure of their iniquities; they rose up in their stead an increase of sinful men, to augment the fierce anger of God, Num 32:

They bewail the sins of their fathers when they were first formed into a people, which, since children often smart for, they are concerned to sorrow for, even further than to the third and fourth generation.

Da 9:5, where the same three verbs occur in the same order and connection, the original of the two later passages being the first one, the prayer of Solomon in dedicating the temple. sinned . . . fathers--like them, and so partaking of their guilt.

We have sinned with our fathers. Here begins a long and particular confession. Confession of sin is the readiest way to secure an answer to the prayer of verse 4; God visits with his salvation the soul which acknowledges its need of a Saviour. Men may be said to have sinned with their fathers when they imitate them, when they follow the same objects, and make their own lives to be mere continuations of the follies of their sires. Moreover, Israel was but one nation in all time, and the confession which follows sets forth the national rather than the personal sin of the Lord's people. They enjoyed national privileges, and therefore they shared in national guilt. We have committed iniquity, we have done wickedly. Thus is the confession repeated three times, in token of the sincerity and heartiness of it. Sins of omission, commission, and rebellion we ought to acknowledge under distinct heads, that we may show a due sense of the number and heinousness of our offences.