Who are you to judge another’s servant? To his own master he stands or falls. Indeed, he will be made to stand, for God is able to make him stand. – Romans 14:4

We are all so prone to find fault with other people instead of attending to our own home affairs. We attend to the vineyards of others, but our own vineyard we have not kept. Ask a worldly man why he is not religious, and he tells you “Because so-and-so makes a profession of religion and is not consistent.” Pray is that any business of yours? To your own Master you must stand or fall, and so must he; God is their judge, and not you. Suppose there are a great many inconsistent Christians-and we are compelled to acknowledge that there are-so much the more reason why you should be a good one. Suppose there are a great many who deceive others; so much the more reason you should set the world an example of what a genuine Christian is. “Ah! but,” you say, “I am afraid there are very few.” Then why don’t you make one? But after all, is that your business? Must not every man bear his own burden? You will not be judged for other men’s sins, you will not be saved by their faith, you will not be condemned for their unbelief. Every man must stand in his own proper flesh and blood at the bar of God, to account for the works done in his own body, whether they have been good or whether they have been evil. It will be of little avail for you to say at the day of judgment, “O Lord, I was looking at my neighbors; O Lord, I was finding fault with the people in the village; I was correcting their follies.” But thus saith the Lord: “Did I ever commission thee to be a judge or a divider over them? Why, if thou hadst so much time to spare, and so much critical judgment, didst thou not exercise it upon thyself? Why didst thou not examine thyself, so that thou mightest have been found ready and acceptable in the day of God?” These persons are not very likely to win the race, because they turn to kicking others. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0198.cfm