A father with two sons. Here’s a similar picture.
“But what do you think? A man had two sons, and he came to the first and said, ‘Son, go work today in the vineyard.’ And he answered, ‘I will not’; but afterward he regretted it and went. The man came to the second and said the same thing; and he answered, ‘I will, sir’; but he did not go. Which of the two did the will of his father?” They said, “The first.” Jesus said to them, “Truly I say to you that the tax collectors and prostitutes will get into the kingdom of God before you.
— Matthew 21:28-31
Do you also think the father here is God? Or is he just a father being used to make a point?
Matt. 21:28-31 comes right after the chief Priests and elders came try to trap Jesus by asking: “By what authority are you doing these things?” they asked. “And who gave you this authority?”
And this comes after: "But when the chief priests and the teachers of the law saw the wonderful things he did and the children shouting in the temple courts, “Hosanna to the Son of David,” they were indignant."
Matt. 21:28-31 come right before; The Parable of the Tenants where God is obviously the “Landlord”, since he says right after: 43 “Therefore I tell you that
the kingdom of God will be taken away from you and given to a people who will produce its fruit.
After these parables: 45 When the chief priests and the Pharisees heard Jesus’
parables,
they knew he was talking about them. 46 They looked for a way to arrest him, but they were afraid of the crowd because the people held that he was a prophet.
Jesus specifically says after the chief priest, elders and Pharisees said “the first” who the first son is and who they are and are they not a huge group of hypocrites to God’s commands?
These chief priests, Pharisees and elders new these parables (
plural) were about them: they were the son, who said to their father: “‘I will, sir’; but he did not”. Those sinners who did not say they would be obedient to begin with, have turned and obeyed, so they are pleasing to God even though they refused earlier on.
So, yes, I see God as being the spiritual meaning of the father, in the parable of the two sons the same as God is the father in the Prodigal son parable.