I once knew a man who said it should be the parable of the prodigal father, which, of course, is true. We are not very prodigal with much but our father’s treasure.
I have been the younger son. I have been the older son. Jesus knows that we are all really not great sons–judge-y or profligate or both, so he gives a story where the two great characters are an old man and a fatted calf.
The man who saves the world makes himself the main course at a feast thrown for a loser.
I am that loser. The shining moment of clarity in any human life is when we realize we are all the prodigal child.
And so we should know the rules for prodigals–
I have done nothing to deserve this inheritance I have squandered
I have made little account for the days my Father has grieved on my behalf
But he never stops hoping I will come home.
What pride, what fear, what foolishness can withstand the power of love?
Luke 15:17-20 KJV
 And when he came to himself, he said, How many hired servants of my father’s have bread enough and to spare, and I perish with hunger!  I will arise and go to my father, and will say unto him, Father, I have sinned against heaven, and before thee,  And am no more worthy to be called thy son: make me as one of thy hired servants.  And he arose, and came to his father. But when he was yet a great way off, his father saw him, and had compassion, and ran, and fell on his neck, and kissed him.