Lyric discussion by Songwriterwinsagain 

though they are religious, I don't believe they're making a statement about God's grace in this song. although I do agree with everything else the post above me stated. "unless the east never meets the west"| sunset, I think this is another statement comparing a lover to the sun, and he's saying "unless your light never leaves me"

"unless you set my sin between your shoulder blades and forget"| unless you carry the weight of the knowledge of my wrong doings and leave them in the past.

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