Dear brother or sister, you may struggle with the assurance of your salvation. I know what that’s like. Sometimes I wonder, “Can I actually be saved if I have thoughts like this, if I have these desires? Am I really saved if I do things like this?” When we are conscious of our sinful thoughts and desires, when sinful words come hurling out of our mouths, when our behavior has proven to be yet again sinful and hurtful, it’s easy to think, “Am I actually a Christian or am I simply a...