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

There is the sea; (the Israelites) have just marched through it, and they have reached Marah, where the waters are brackish. If they now distrust and complain, close on the heels of their great deliverance, it will be a crime indeed. O men, what are you at? There is the Red Sea which God divided: and yet you think He cannot give you water to drink! O fools and slow of heart, thus to doubt the Almighty! Doubt in the presence of a mercy! Doubt while so great a favor is before your eyes! This is evil indeed! O beloved, do not bear hard upon these Israelites, bear hard upon yourselves, and hate the sin which dares intrude within the sacred encloses of your joy in the cross, and dares to tempt you even when the five wounds of Jesus are shining on your soul like the stars of God. Hate the sins which follow you to the Table of the Lord. Hate the wandering mind which taints the sacred bread and wine and defiles you when the instructive symbols are yet in your mouths. Abhor the sin which dogs your heel, and follows you even to your knees, and hinders you in drawing near to God in prayer. Oh, the accursed sin which even on Tabor’s top makes us fall asleep or talk foolishly!

Do you wonder that God was provoked? Have you ever acted so? Did you ever rise high in rapture, and praise the Lord upon the high-sounding cymbals, and then find yourself groveling on the ground within an hour? What fools we are! “Verily every man at his best estate is altogether vanity.” When we know most, we are ignorant; when we swell to our greatest, we are big nothings. When God makes much of us, we think least of ourselves. How greatly do we prize and praise the precious blood of Jesus which cleanseth us from all sin?…O Thou blessed Holy Spirit, strengthen the faith of Thy people this day, and may that faith create in us perfect obedience to the will of the Lord, so that henceforth we may magnify His holy name, and walk with Him until we see His face unveiled above! ~ C.H. Spurgeon

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