So, for a Christian, all further assumptions need to fit with that ultimate intuition (including the ultimate intuitions of what "being a Christian" actually means).
It is a matter of admitting this necessary freedom as our own active choice, and of taking responsibility for its exercise.
I have been pondering the oxymoronic term necessary freedom since I encountered it in Dr. Charlton’s post because I believe it captures the essence of what "being a Christian" should mean in this time and place.
My encapsulation of what being a Christian means rests in an augmented, non-Biblical passage from the Grand Inquisitor chapter of Dostoevsky's The Brothers Karamazov (augmented parts in bold):
Thou didst desire man's free love, that he should follow Thee freely into heaven, enticed and taken captive by Thee. In place of the rigid ancient law, man must hereafter, with a free heart, decide for himself what is good and what is evil, and with a free heart, actively choose resurrection and everlasting life, having only Thy image before him as his guide.
Aside from providing a simple and lucid description of what being a Christian means, the passage above also includes the necessary freedom Dr. Charlton described in his post.
The ancient rigid law did not serve Jesus' purposes and mission. To follow Jesus involved freeing the heart and gaining spiritual freedom. This was not optional but necessary. It remains necessary today, perhaps more than ever; however, Christians insist instead on substituting spiritual freedom with "newer" ancient laws in the form of strict adherence to churches, dogma, and doctrines.
A few years ago, I explored the idea of God's apparent unresponsiveness. In that post, I posited that God is not responding to us because our communications with him are not creative, and that God will respond to us fully the moment we begin creatively communicating with Him. I added that spiritual creativity requires initiative from us and that this initiative must derive from freedom.
Spiritual freedom is necessary because God can only act upon freedom and communicate through freedom. Put another way, freedom is the only "medium" upon and through which God will now act and communicate.
That is a big part of what makes it necessary.
However, the medium is only viable if the Beings within it are "in" freedom. Conversely, the medium breaks down when it is tainted by the prioritizing of laws and doctrines of worldly necessity.