"I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service." (Romans 12:1)
In Doctrinal Discussion, Dr. Gayle Woods writes:
Offering your life for God’s service is your reasonable, or logical, act of worship. Contrary to popular belief, worship does not begin at 9:45 a.m. and end at 12 p.m. on Sunday. A “living-sacrifice Christian” worships God all week long. You worship God by allowing Him to be the operator in your life. He sits in the driver’s seat. When we call the shots, we misuse and sometimes abuse our lives. We make poor decisions. We tend to wander aimlessly through our day. We concentrate on the mundane duties of today, forgetting to focus on the importance of eternity and the imperative of our God-given mission. So God says, “Bring your body to me and I will use it rightly. I will use it to bring peace to hearts. I will use it to bring joy to spirits. I will use it to bring healing to relationships. I will use it in my infinite wisdom.”
Source: Biblical Family Values, Adult Teacher's Insights, page 74.