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 – Psalm 106:6,7

Great things, whether good or evil, begin with littles. The river that rolls its mighty volume to the sea was once a tiny brook; nay, it started as a spring-head, where the child stooped down to drink, and, with a single draught, seemed as if he would exhaust the supply. The rivulet ripples itself into a river. Sin is a stream of this sort. It starts with a thought; it increases to a resolve, a word, an act; it gathers force, and becomes habit, and daring rebellion. Want of understanding lies at the fountain-head of sin: “Our fathers understood not Thy wonders in Egypt.” Out of this lack of understanding comes the greater offense of ungrateful forgetfulness. Failure of memory follows upon a want of understanding: “They remembered not the multitude of Thy mercies.” This readily leads on to the sad consummation of rebellion. Provocation follows upon forgetfulness. Inward faults display themselves in outward offenses: “They provoked Him at the sea, even at the Red Sea.”

To confess our personal sin will tend to keep us humble; and in view of the Lord’s mercy, which has spared and pardoned us, a sense of our guilt will make us grateful. The less we think of ourselves the more we shall think of Him whose “mercy endureth for ever”; and if we see where our fathers’ sins began, and how they grew, and what they came to, we may hope that the Spirit of God will help us to turn from the beginnings of evil, and forsake the fountain-heads of our iniquities. This will tend to repentance and holiness. May we be so wrought upon by the Spirit of God that we shall not be as our earthly fathers, but become like our heavenly Father, who says to us, “Be ye followers of God, as dear children.” We are not to take our fathers after the flesh for our example wherein they have gone astray; but our Father who is in heaven we are to imitate by the power of His grace. ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/2204.cfm