Matthew 28:18
The context
The closing scene of Matthew, on a mountain in Galilee where the eleven have gone at Jesus's instruction. Some worship and some doubt, and Matthew records both without resolving the mixture. Jesus comes to them and speaks first about authority, before he says anything at all about going.
What it establishes
It establishes the basis for the commission that follows: the sending rests on a claim of universal authority, and the authority is given rather than seized. The scope is stated in the widest terms the language has, heaven and earth together.
What it does not establish
It does not say how that authority is administered. Matthew gives the claim and the commission, not a theory of government. The verse says nothing about institutional succession, and the Gospel ends without describing any arrangement for continuing office or officeholders.
Short note, first pass, October 2026. Corrections welcome.
Cited in these answers
Part of Scripture, Opened — the exegetical layer behind every citation on this site. Scripture quotations are from the ESV.