Rending to Caesar

Give the one thing you have
Make it worth something more
You are bound by duty
To do this
For others you become a whore
Your flesh is offered
To all men
Your being is given
To the liar's den
This world is far from paradise
Yet you give up all you have
Including your life
Your flesh is yours
Your soul is bound
Your being is holy
Yet still
You give to others
What is only yours
You trade life
For something
That kills