Who's that knocking and what do they want? We think it might be God trying to get our attention. He just might have something to say to us. Do you think we would respond better if we actually heard the knocking or, um, thumping? What is a thump? Is it the sound your heart makes? A peck on the shoulder to get you to notice something? A knock on the door? The bass note in a great song? Granted it's a shirt that will get a lot of attention and more than a few questions.
100% preshrunk cotton. Orange n' purple just in case you were wanting to blend in.