From Das Wiki:
"The Return of the Prodigal Son is an oil painting by Rembrandt. It is among the Dutch master's final works, likely completed within two years of his death in 1669. Depicting the moment of the prodigal son's return to his father in the Biblical parable, it is a renowned work described by art historian Kenneth Clark as "a picture which those who have seen the original in St. Petersburg may be forgiven for claiming as the greatest picture ever painted".
Rembrandt was moved by the parable, and he made a variety of drawings, etchings, and paintings on the theme that spanned decades, beginning with a 1636 etching (see here and here). The Return of the Prodigal Son includes figures not directly related to the parable but seen in some of these earlier works; their identities have been debated. The woman at top left, barely visible, is likely the mother,while the seated man, whose dress implies wealth, may be an advisor to the estate or a tax collector."
The central figure in this parable is not who you think. It's the dis-approving, albeit obedient, older brother. He represents the intolerance of legalism, coupled to the long memory of accusation which eschews repentance and forgiveness of sinners in favor of judgment and retribution.
Think of it as the ancient world's version of 'g00gle is forever, the hive mind has passed judgment, so you must be de-platformed, and your statue torn down.'
However, the joyful welcoming father is not simply a homage to indulgence toward his wayward younger son. The son had to acknowledge his errors, repent of his wicked ways, then ask forgiveness from his father.
“But when he came to himself, he said, ‘How many of my father’s hired servants have bread enough and to spare, and I perish with hunger! I will arise and go to my father, and will say to him, “Father, I have sinned against heaven and before you, and I am no longer worthy to be called your son. Make me like one of your hired servants.”
“And he arose and came to his father. But when he was still a great way off, his father saw him and had compassion, and ran and fell on his neck and kissed him. And the son said to him, ‘Father, I have sinned against heaven and in your sight, and am no longer worthy to be called your son.’
“But the father said to his servants, ‘Bring out the best robe and put it on him, and put a ring on his hand and sandals on his feet. And bring the fatted calf here and kill it, and let us eat and be merry; for this my son was dead and is alive again; he was lost and is found.’ And they began to be merry.
“Now his older son was in the field. And as he came and drew near to the house, he heard music and dancing. So he called one of the servants and asked what these things meant. And he said to him, ‘Your brother has come, and because he has received him safe and sound, your father has killed the fatted calf.’
“But he was angry and would not go in..." - Luke 15:17-28