When we tell people our testimony, we want to be an example of how to go through life while still maintaining a heart for Christ.
That doesn’t mean we will be perfect, but it means we can be like David, a “man after God’s own heart” (1 Samuel 13:14) despite his sins. Our testimony encourages believers to hold on to the faith and non-believers to an example of being a good Christian living in sinful flesh.
It was Naomi who led Ruth out of her pagan nation, despite Naomi’s distress. Naomi was depressed and bitter, but her faith inspired Ruth to be a virtuous woman. A good testimony is a great way to show people the difference between an unsaved sinner and a sinner saved by grace.