Wherefore let him that thinketh he standeth take heed lest he fall. – 1 Corinthians 10:12

Let us fear God because of His greatness; let us fear ourselves because of our sinfulness. Let us fear lest we should fall into sin, and perish with the rest of the sinners. Let no man say, “I shall never fall.” Alas! those are the most likely to slip. Did you never note that those who seem least likely to fall into a sin are the very people who commit it? You would not have dreamed that sober Noah should be found drunk; nor that righteous Lot should commit incest; nor that David, whose heart smote him when he only cut off the lap of Saul’s garment, should be guilty of murder; nor that Peter, who said, “Though all men should forsake Thee, yet will not I,” would have denied his Master with oaths and cursing.

By faith Noah… moved with fear… -Hebrews 11:7

Ah, friends! we may not trust ourselves; but we ought to stand in daily fear lest we be guilty before God. Here was Noah filled with such a holy fear of himself, that he took care to do what the Lord bade him, even to the most minute particular. He did not choose another sort of wood, nor alter the shape of the vessel, nor make more stories, nor more windows, nor more doors; but he distrusted his own judgment, and leaned not to his own understanding. He did exactly what he was told to do, and thus left the consequences with the Lord who commanded him. He feared his own wisdom: for he knew that man is like to vanity, and no more to be relied upon than the mist of the morning. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2147.cfm