Martin Luther, in a letter to his friend Philipp, penned those words: "Sin boldly."
The vastness and hugeness of God's grace makes it possible for us to sin boldly.
Now, this sounds strange to us. Sin is the evil evidence that we are broken people, bent horribly and crippled beyond all but the most miraculous repair (which we receive through Jesus). We want sin removed from our lives. We want it torn from us, violently if necessary. And not only from us, but also from all whom we love.
But we cannot accomplish this ourselves. And God's help sometimes comes more slowly than we'd like. Some sins linger.
So, we do what any rational person would do. We hide our sin. We justify it and explain it away. We attribute it to our environment. "I only did that because I was hungry, angry, lonely, tired, she deserved it, it was just once, your should have seen the other guy, I didn't do it, you didn't see me do it, you can't prove anything." Sin becomes "stumbling" or "struggling." And we become afraid.
Luther's push to sin boldly isn't a push to take pride in our sin or to treat our sin like it's good. Sin boldly is about honesty. It's about not hiding. It's about not being afraid.
Luther referenced 2 Peter 3:13 in his letter, speaking of the new heavens and the new earth and our anticipation that we will be finally and totally cleansed from our sin on that day. If that day is surely coming and God's grace will surely carry us there intact, then why should we hide?
What would happen if we were honest? vulnerable?
What would happen if we lived like we had nothing to hide, confident in God's great grace?