I guess I will have to agree and disagree in certain aspects of this post. I don't think it is UnGodly or not Christian like to NOT allow someone to use your equipment. No two people play the same. We work hard to pay for our equipment that God has blessed us with. So, my ax is off limits. I would let someone use my amp, but as others have stated; I'm gonna be right there and you're not gonan be twisting and changing my settings. And think about it, "Would you go to church without your bible?" It different that piano, orgam or keyboard players; somewhat. Drummers usually come with their own snare & foot pedal. That's understandable. But we pay a lot for our axes and other things. Speaking of, I just bought some Ken Smith strings for my 5-string: $42 a set. Now if I allowed someone to use my ax and they popped one, I would be upset...
Ultimately, I think it is at the discretion of the owner to allow or not allow someone to use your equipment. And I don't think it makes me less SAVED than another who would allow whereas I wouldn't. Just my 2 cents. And if you play and you might have to play or someone wants you to play when you go somewhere; it's simple: take your equipment with you. Amp & an ax don't take up that much room.