Psalm 106:6-7 We have sinned with our fathers, we have committed iniquity, we have done wickedly. Our fathers understood not thy wonders in Egypt; they remembered not the multitude of thy mercies, but provoked him at the sea, even at the Red Sea.
The Psalmist confesses the sin and rebellion of the people, both now and in the past. They did not take to heart the wonders God had done for them nor His many mercies. Out of sheer grace and mercy the Lord had done mighty wonders in the deliverance and provision for the people. But they forgot. And the present people continued in the same sin as their fathers. It was time to confess and return in faith.
The awesome, miraculous works of God for our salvation need to be remembered and brought to mind often, for it has a positive effect on our faith and life. The great salvation accomplished by the Son of God must be remembered and rehearsed by us today. If we don’t remember regularly by hearing the Gospel in church, “doing this (taking Communion) in remembrance of Me,” and reminding ourselves in daily repentance and faith, we will forget, go on living without God, and life will not be changed for the better. The positive benefits and blessings do not take hold. Life changes for the better when we understand and remember the Gospel. Confess it!