The shame is all ours, but God, I'm all yours, save me
Before the doors close and them horns blown

from Blu (Ft. Exile) – A Man Lyrics on Rap Genius

Meaning

So many horrible things that have happened, and continue to happen, around the world were done for God’s sake. Blu recognizes that the blame is actually on us since nothing was truly done on God’s behalf, but rather were done out of hate, corruption and greed

Blu is attempting to give himself to God that he may be saved before the horns sound, representing either his time on earth is over or the popular belief in some sort of rapture

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