Acts 10:44-48
The context
Peter has been sent to a Roman centurion's house, against his own convictions about table and company, and he has barely begun to speak. The Spirit falls on the Gentile listeners, and the circumcised believers who came with him are astonished. Peter's response is not to argue but to ask who could refuse water, and he orders baptism.
What it establishes
It establishes that God's acceptance of Gentiles is not contingent on their adopting Jewish practice first, and that the evidence was public and undeniable to the Jewish witnesses. The order of events, Spirit then water, matters to the argument.
What it does not establish
It does not settle the theology of the sacraments. The episode is a turning point in a narrative, not a ritual manual, and it does not say what baptism accomplishes or who may administer it. Nor does it promise that every conversion will be accompanied by signs of this kind.
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.