The whole corpus of Biblical law and ethics is focussed on one goal: the maturation of families (and individuals within them) to exercise God's rule upon the earth. To do that, responsibility, the fruits of the Spirit, and virtue must be practiced. The mature Christian's job is to lead others in that development (here is the true Biblical idea of eldership).
I have found myself in the position, more than once, of helping others mature. As I look at my employees and (more significantly in many ways) my daughter, I am struck by my own lack of maturity, of real Christian virtue. How can I hope to see God's will done on earth in my tiny sphere of influence if I haven't been willing to do what His will is?
I desire for Olivia that she be thrifty, hard-working, honest, faithful, dependable, loyal, trusting-yet-shrewd, long-sighted, and loving. I am few of those things and none all the time. How can I hope for her what I am not?
But God gives us the Spirit to be made and remade into the image of His Son.