Since birth - we have all submitted to something. As babies, we submit to our mothers for our sustenance and care. The mothers submit to their babies by responding to their cries. Men submit to their families when they go off to work each day. New homeowners submit to the mortgage company and their local towns by agreeing to pay their mortgage payments and property taxes. Yes, we all submit to someone.
There are other submissions we make, as well. Some submit to their sexual impulses, some to tobacco; some to heroin. People submit to money and things, for as we soon realize, each possession requires that we care for it if we want to continue that possession. This is why we call them possessions for they possess us.
Their are two types of decisions - active decisions and passive decisions, and both types are made every day. When a person actively decides to purchase a car, they have also passively decided to fill the car with gasoline and change the oil. When we marry, the active decision may have been that we wanted a life partner that will remain faithful to us. The passive decision is that we will remain faithful to them, as well.
We all submit to people, things, governments and situations every day, whether actively or passively yet, when Christians submit to God, we are called passive. But, I challenge you to find a stronger decision than submitting to God. It is a choice - The decision to submit to those things of the world are a less active decision than submitting to the Creator of all.
"I call heaven and earth to witness against you this day, that I have set before you life and death, blessing and curse; therefore choose life, that you and your descendants may live, loving the LORD your God, obeying his voice, and cleaving to him; for that means life to you and length of days, that you may dwell in the land which the LORD swore to your fathers, to Abraham, to Isaac, and to Jacob, to give them." Deuteronomy 30 RSV
So you see - by actively choosing God, I have passively chosen Life.