“But when this son
Who has devoured
The fatted calf
ὅτε δὲ ὁ υἱός σου οὗτος ὁ καταφαγών σου τὸν βίον μετὰ πορνῶν ἦλθεν, ἔθυσας αὐτῷ τὸν σιτευτὸν μόσχον.
This long parable story about the 2 sons can only be found in Luke, not in any of the other gospel stories. Luke indicated that Jesus said that this older son continued his complaint to his father. He said that when his brother, his father’s son (ὅτε δὲ ὁ υἱός σου οὗτος), came back (ἦλθεν), after having devoured his property (ὁ καταφαγών σου τὸν βίον) with prostitutes (μετὰ πορνῶν), he went and killed or sacrificed the fatted calf for him (ἔθυσας αὐτῷ τὸν σιτευτὸν μόσχον). Luke is the only biblical writer who used this term σιτευτόν, that means fattened calf, 3 times in this story. This upset son pointed out to his father that his brother had squandered all his hard-earned property on prostitutes. Yet he was rewarding him with a special meal celebration. Does this seem fair to you?