But be doers of the word, and not hearers only, deceiving yourselves. – James 1:22

You profess to be a Christian: be a Christian. You say that you are a follower of Christ: follow Him, then. You know it is right to be a man of integrity and uprightness: be so. Let no dirty tricks of trade, let no meannesses, let none of those white lies which degrade commerce nowadays, ever come across your path, except to be reprobated and abhorred. Walk straight forward. Learn not to tack. Do not wish to understand policy, and craft, and cunning. Buy the truth. It will shame the world yet. He that speaks out his mind, says what he means, and means what he says, does the just thing, does the right thing, fears no man, and lifts his head boldly in the face of all creation if it dares to whisper that it will enrich him by his doing wrong-that is the man that buys the truth practically. You know how it can be carried out in commerce readily enough, in the parlour, in the drawing-room, and in the kitchen. There is a truthful way for a shoe-black to black shoes in the street, and there is a lying way of doing it. There is a truthful way of doing the commonest actions, and there is a false method of doing the very self-same thing. In this respect, then, buy the truth, as to the straightforwardness, the clean, sharp transparency of your moral character and of your Christian conduct. Never seem to be what you are not, or if you must for a while be in that position, count that you are unfortunate, and escape from it as soon as you can. Never do what you are ashamed of; it matters not who sees. Think always that God sees, and with God for a witness you have enough of observers. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/3449.cfm