The chapter
Simply A day of questions in the temple, all of them traps. The authorities ask where his authority comes from and he asks them one back that they cannot answer. He tells a story about tenants who kill the owner's son. Spies ask whether it is lawful to pay Caesar's tax. Sadducees, who do not believe in resurrection, ask about a woman married to seven brothers. Then he asks a question of his own about the Christ and David, and nobody dares ask him anything else.
Context Every argument in this chapter is settled by opening a book, and all four texts can be opened here. Verse 17 quotes Psalm 118:22 about the rejected stone. Verse 28 states the law the Sadducees are using, which is Deuteronomy 25:5. Verse 37 answers them out of Exodus 3:6, the words at the burning bush. Verses 42 and 43 quote Psalm 110:1. The chapter is a series of attempts to catch him on his own ground, and each time he moves the argument onto a page both sides accept.
Verses 1-19
Simply The priests and scribes ask by what authority he does these things. He offers to answer if they answer one question first: was John's baptism from heaven or from men? They work out that either answer costs them something, so they say they do not know, and he says he will not tell them either. Then a story: a man plants a vineyard, lets it out, and sends three servants for his share, who are beaten and thrown out; then he sends his son, and the tenants kill him to get the inheritance. The listeners say may that never happen, and the authorities want to arrest him on the spot but are afraid of the crowd.
Context Verses 5 and 6 are the rarest thing in the Gospels: the text tells the reader what the other side is thinking while they think it. They are not weighing whether John was a prophet, they are weighing what each answer will cost, and the second option ends with the people stoning them. So verse 7 is not ignorance, it is a calculation, and the reader was shown the working. Verse 19 then says plainly that they knew the parable was about them, which removes any question of whether it was meant that way.
Verses 20-26
Simply They send men who pretend to be sincere, hoping to catch him saying something that can be handed to the governor. They flatter him, then ask whether it is lawful to pay taxes to Caesar. He asks to be shown a coin and asks whose face and name are on it. Caesar's, they say. Then give Caesar what is Caesar's and God what is God's. They cannot use anything he said, and they go quiet.
Context The trap at verse 22 has two jaws and the text names both: verse 20 says the aim is to deliver him to the GOVERNOR'S AUTHORITY, so a no is sedition, while a yes would cost him the crowd. The answer does not split the difference; it hands back a question. He asks whose IMAGE is on the coin, and the sentence he gives works only because the answer to that was Caesar. What bears God's image is not named here, and the file does not supply it, since the text stops where it stops.
Verses 27-47
Simply Sadducees, who say there is no resurrection, put a case: seven brothers marry the same woman in turn under the law about a childless widow, and all die. Whose wife is she when the dead rise? Jesus says the question assumes that the next age works like this one, and it does not, because those who rise do not marry and cannot die. Then he answers the real question from Moses himself, at the burning bush. Some scribes say he answered well and nobody asks anything more. He then asks how the Christ can be David's son when David calls him Lord, and warns the crowd about scribes who eat up widows' houses.
Context The Sadducees argue from the five books of Moses, so the answer is given from the five books of Moses. Exodus 3:6, which can be opened here, has God say at the bush I AM the God of Abraham, in the present tense, and verse 38 turns on that tense: he is not the God of the dead but of the living. The last two verses are the sharpest turn in the chapter. He has just been warned about scribes who DEVOUR WIDOWS' HOUSES at verse 47, and the very next thing the book shows, at 21:1 to 4, is a widow putting everything she has into the treasury. This Gospel puts the accusation and the illustration next to each other and says nothing further.