If you add to or subtract from the cross, even if it is to factor in biblically mandated religious practices like prayer and evangelism, you rob God of His glory and Christ of His sufficiency.
Matt ChandlerThe spiritual power in the gospel is denied when we augment or adjusting gospel into no gospel at all. When we doubt the message alone is the power of God for salvation we start adding or subtracting, trusting our own powers of persuasion or presentation.
Matt ChandlerThe general confusion is that our moral behavior is what justifies us before God. Most of us would never say that with our mouths but we feel that lie in our heart and believe it in our minds. You can be morally upright and not be a worshipper of Christ at all.
Matt Chandler