Peter and John stand trial before the Sanhedrin, the same council that condemned Jesus. When asked by what power they healed the lame man, Peter, filled with the Holy Spirit, turns a defensive moment into gospel proclamation. He declares that the healing happened through Jesus Christ of Nazareth, the stone the builders rejected that God made the cornerstone. Then Peter delivers one of Scripture's most exclusive claims: salvation is found in no one else, for there is no other name under heaven given to mankind by which we must be saved. The healed man stands right there as undeniable evidence. This is bold, articulate, unapologetic witness under pressure, exactly what Jesus promised the Spirit would produce when his followers faced authorities.