"It shows a lack of respect for the situation. If you can't afford anything other than jeans, that's one thing. However, if you own slacks and a collared shirt, why not put them on?"
A "lack of respect" for whom? Do you honestly believe that God feels disrespected if someone worships Him in jeans? IYIYIYI! I believe you are basing your opinion on what PEOPLE, not God, approve of. :)
A lack of respect for the solemness and importance of the situation.
Tell me, what does it say to you about President Bush that he never wears casual clothes in the Oval Office or that he abolished casual wear for White House staffers?
Matthew 22:10-14: "Those slaves went out into the streets and gathered together all they found, both evil and good; and the wedding hall was filled with dinner guests. 11 "But when the king came in to look over the dinner guests, he saw a man there who was not dressed in wedding clothes, 12 and he said to him, `Friend, how did you come in here without wedding clothes?' And the man was speechless. 13 "Then the king said to the servants, `Bind him hand and foot, and throw him into the outer darkness; in that place there will be weeping and gnashing of teeth.' 14 "For many are called, but few are chosen."