Why Love??

The question came up between me and my six year old, "Why do we obey.....?" It could be Mommy, Daddy, God, or anybody, but what is the reason we obey. My sons immediate answer was, "So I don't get in trouble." Which is a good answer for a six year old. I guess this means that he understands the point of discipline, but I wanted to show him how the concept of obedience goes deeper than just trying to avoid a spanking.
If we look at it from a Biblical perspective, why do we (Christians) obey God. We love God becuase He first loved us, and becuase He sent His Son to pay the price for our sins. "This is love; not that we loved God, but that he loved us and sent his Son as an atoning sacrifice for our sins." 1 John 4:10 We obey God becuase we love Him. "If you love Me, you will obey what I command." John 14:15 It is so easy to get caught up in different reasons for doing things for God.

Why do I spend time in God's word? because I love God.

Why do I spend time in prayer? because I love God

Why do I go to church and worship God with other believers? because I love God
Why do I witness and share my faith? because I love God
Why do I work hard and try to be a good employee? because I love God

You see that we could just go on and on and on. This is the point that I was trying to get accross to my son. We may think that there are other reasons for what we do, but if you are a born again Christian, there should ultimately be one main reason motivating you to ________________.(you fill in the blank)