Can we be Christians without submitting to God??

Can we be Christians without submitting to God??
I know this is a very strange question, but today THERE ARE PEOPLE THAT THINK ITS POSSIBLE!!
They brag with their FREEDOM IN CHRIST and they carry on living just like they lived before!
Speaking like the world, joking like the world, having unbelievers as friends, without sharing the Gospel to them, but living sinful lives together with them.
This message will show once again how much these people are deceiving themselves thinking they are Christians!
Romans 12:1-2
I appeal to you therefore, brothers, by the mercies of God, to present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship. Do not be conformed to this world, but be transformed by the renewal of your mind, that by testing you may discern what is the will of God, what is good and acceptable and perfect.