How the doctrine of justification changes things

Here's a clip from a sermon that I really needed to hear (again and again) as far back as high school. Talk about eternal security…I'm only now starting to feel secure in this.

That's great, man. I love how he pointed out how the tirelessness of God's forgiveness actually made him obey more naturally. It seems counter-intuitive that we would obey more when we know that God will tirelessly forgive even our repeated, knowing and and willful sinning, but I think his observation of his own experience is likely true for a lot of Christians.