For I have kept the ways of the LORD, and have not wickedly departed from my God. For all His judgments were before me, and I did not put away His statutes from me. I was also upright before Him, and I kept myself from mine iniquity. – Psalm 18:21-23

Brethren, we want to show the world what grace can do, and every member of the church ought to feel that he is put upon his behaviour to prove what the grace of God has done in him. What credit is brought to Christ by professed Christians who are so like worldlings that, if you put them under a microscope, you could not tell the difference between them? If you can do what worldlings do, you shall go at last where worldlings go. If grace does not make you to differ from them, it is not the grace of God, it is all a sham. We ought to feel that Christ’s honour is in danger by our ill behaviour, and so live that we can glorify our Father who is in heaven by our good works, keeping ourselves from our iniquity.

What a sweet peace this will give to your conscience! …A well-spent life, a life that is pure, a life that has been consecrated to usefulness, a life in which there has not been a turning aside to the right hand or to the left, helps us to lie down with comfort upon our dying bed, and bid farewell to all our dear ones and feel that we are leaving behind us the legacy of a gracious example in which we do not glory, but for which we give God the glory, and thank and praise His holy name. Begin at the cross; there is the source of your salvation. Then go, and live like the living Saviour. God help you to do so, for Christ’s sake! ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2432.cfm