(Surgical) Cloth or band tightened around a part of the body (like the arm) to stop blood flow temporarily.
(Religious) What Christ offers to anyone who comes to Him - Psalm 147:3 says that, "He heals the broken-hearted and binds up their wounds".
You choose your own meaning.
They are a great band, one of the greatest thrash bands in history; but they are not very known only because they a Christian band. I recommend songs like "Viento Borrascoso", "A Dog's Breakfast", "Ready or Not", "Ark of Suffering" or "Pathogenic Ocular Dissonance".