Put on therefore, as the elect of God, holy and beloved, bowels of mercies, kindness, humbleness of mind, meekness, longsuffering; – Colossians 3:12

If Christ is all, and yet I being a Christian am not like Christ, my Christianity is a transparent sham, I am nothing but a base pretender, and my outward religiousness is a pompous pageantry for my soul to be carried to hell in-nothing more. It is a gilded coffin for a lifeless spirit. I shall perish with a double destruction, if I have dared to profane the name of Christ by taking it upon me, when I have not the essence of the Christian religion within me. Orthodoxy, though it be of the most assured sort, is vanity of vanities, unless there be with it an orthodoxy of life: and experience, whatever man may say about it, is but a dream, a fiction of his own imagining, if it does not display itself in shaking off the sins of the flesh and putting on the adornments of holiness. O brethren, these are searching things to every one of us. Who amongst us lives as he should at home? Could you bear that the angel who visits your house should publish, before the great cloud of witnesses, all that he has seen there? …I charge you, if you have any respect for Christ, lay down His name if you will not endeavor to honor it, you covetous money-grubbers, you earth-scrapers, who live only for this world, you will be lost; you need not doubt of that, you will be lost sure enough; but why need you make the assurance of your condemnation doubly sure by the base imposture of calling yourselves Christians. Meanwhile, let the Ethiopian call himself white, if he will; let the leopard declare that he has no spots; these things shall not matter; but the falsehood of a man who lives without Christ, while calling himself a Christian, brings such dishonor upon Him who was nailed to the tree, and whose religion is that of holiness, that I beseech you, by the living God, give up your profession, if you do not endeavor to make it true. If you are not living as you should, do not pretend to be what you are not. Seek ye unto God, that the life of Christ being in you, you may manifest it in your conversation. ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/1006.cfm