By faith Noah… prepared an ark…by the which he condemned the world, and became heir of the righteousness which is by faith. – Hebrews 11:7

Ah! you may laugh, ye worldlings; but the man of God is your master after all! Noah’s preaching condemned them: they knew the way, and wickedly refused to run in it. His warning condemned them: they would not regard it and escape. His life condemned them, for he walked with the God whom they despised. How his faith condemned them! When the floods began to rise, and the door was shut, how the sight of the ark condemned them! I can imagine, when the water began to get knee-deep, there would be frightened ones around the ark door; but it could not be opened since God had shut it…The day in which they might have entered was gone by…

How often have I spoken of the pit which God hath digged for the wicked, into which your feet will slide in due time unless you seek the Saviour! May be, in those days of terror, the face of the preacher will condemn you, as you remember how he looked at you with earnest love, but you would have none of his pleading, and chose to perish in your sin. Your blood shall be upon your own heads. It is a solemn thought, that one lone man condemned a world. It was one against millions! Yet the one condemned the millions. If God is with a man, though that man be only one, he is in the majority. Men of the world wilt soon become a weeping, wailing, and despairing company; but he that stands alone for God shall be held in honour, and shall both judge and condemn the guilty world. ~ C.H. Spurgeon

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