And Balaam said unto the angel of the LORD, I have sinned… -Numbers 22:34

Think you see Balaam; he stands upon the brow of the hill, and there lie the multitudes of Israel at his feet; he is bidden to curse them, and he cries, “How shall I curse whom God hath not cursed?” And God opening his eyes, he begins to tell even about the coming of Christ, and he says, “I shall see Him, but not now. I shall behold Him, but not nigh.” And then he winds up his oration by saying-“Let me die the death of the righteous, and let my last end be like his!” And ye will say of that man, he is a hopeful character. Wait till he has come off the brow of the hill, and ye will hear him give the most diabolical advice to the king of Moab, “You cannot overthrow these people in battle, for God is with them; try and entice them from their God.” And ye know how with wanton lusts they of Moab tried to entice the children of Israel from allegiance to Jehovah; so that this man seemed to have the voice of an angel at one time, and yet the very soul of a devil in his bowels. He was a terrible character; he was a man of two things, a man who went all the way with two things to a very great extent… it was like the people of whom it was said, “They feared the Lord, and served other gods.”…There are many such, who are ready for both. They meet a minister, and how pious and holy they are; on the Sabbath they are the most respectable and upright people in the world, as you would think; indeed they effect a drawling in their speech, which they think to be eminently religious. But on a week day, if you want to find the greatest rogues and cheats, they are some of those men who are so sanctimonious in their piety. Now, rest assured, my hearers, that no confession of sin can be genuine, unless it be a whole hearted one. It is of no use for you to say, “I have sinned,” and then keep on sinning. Ah! it is idle and useless for you to say, “I have sinned,” unless you mean it from your heart. That double minded man’s confession is of no avail. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0113.cfm