Luke 15:11-32 serves as a warning instead of model to imitate.
Paul speaks to our self-conscious understanding of tragic fatedness in Romans 7. Like him we long to be released from such an apparent fate, where we are not free to live as we know we could and should. This is more than an individual bondage to sin. It recognizes that sometimes we are prevented from living as we feel we ought by more than our own will; sometimes we are oppressed by the wills of others or even a system which seems to have a will of its own that is impermeable to reason.
In Isaiah’s prophecy a young child serves as a sign puncturing the gloom of a dark political situation. The use of infants and young children to draw attention to God’s future within the book of Isaiah has significance for our own political visions. In regarding the sign of our children we can accomplish an existential turn from a politics driven by the selfish interests of our own generation to one of responsibility and hope for the well-being of those to come.