John 10:1-6 — Sheep don't study doctrine. They know a voice. Jesus draws the line between a shepherd who enters by the door and a thief who climbs the wall in the dark. This expository preaching message walks verse-by-verse through John 10:1-6, tracing the picture of a first-century sheepfold — one door, one porter, many flocks pressed together in the dark — to show how the religious leaders of John 9 fit the profile of the thief and robber Jesus describes. This is a message about knowing God's voice: not by argument, not by proof, but by recognition. The sheep aren't theologians. They just know the shepherd's voice when they hear it — and they know a stranger's voice just as fast. Drawing on Numbers 27, Jeremiah 23 and 50, Ezekiel 14 and 34, and the contrast between John 9's blind man and the Pharisees who cast him out, this expository preaching sermon asks a simple, searching question: when the true voice called, did you follow it — or have you been following a false shepherd without even knowing his name? This sermon walks through John 10:1-6, explaining: - Why there is "no door" between John chapters 9 and 10 — same men, same moment - The difference between a thief (stealth) and a robber (force) — and why John uses both words on purpose - Why the sheepfold in this parable is Israel, not heaven and not the church - How Jeremiah 50 describes shepherds who dry up and starve their own flock - Why legitimacy is structural, not self-declared — "he that entereth by the door" - How the blind man of John 9 responds to a voice before he ever has eyes to see - Why the shepherd leads sheep out, while the Pharisees only ever cast people out