Our obedience does not make God bigger or better than He already is. His essence is unchanged by our obedience or lack of it. Anything God commands of us is so that our joy may be full—the joy of seeing His glory revealed to us and in us! Two major reasons for obedience are that we may become targets of blessing and that He may have the pleasure of bestowing it. Either way, obedience benefits us!
Beth Moore, A Woman’s Heart