“Render to Caesar the things that are Caesar's”
Whose image is this? And whose inscription?… Give to Caesar what is Caesar's, and to God what is God's. (Mark 12:13–17 BSB)
What it sounds like today
A tidy church-and-state formula.
The cultural key
The census tax had triggered Judas the Galilean's bloody revolt a generation earlier: 'yes, pay' meant collaborator; 'no' meant sedition, with Herodians standing by as witnesses. The denarius itself was the scandal: Tiberius' portrait with the inscription 'Tiberius Caesar, son of the divine Augustus', a graven image making a divinity claim. Jesus doesn't carry one; he makes them produce it, inside the temple courts. Then the hinge word: 'likeness' is eikōn, the Greek of Genesis 1:26, humanity made in God's image. Mark spells out the mechanics: they came 'to trap him in his talk,' and Jesus, 'knowing their hypocrisy,' orders the coin brought. The demand that exposes who is carrying the idol is explicit stage direction here.
Recovered meaning
The coin bears Caesar's image, so let Caesar have his trinket back. But what bears God's image is you, and that is the payment actually in dispute. The trap dissolves into a claim on the questioners themselves.