The people in Solomon’s porch want a plain answer. They have heard Jesus teach and seen what he does, and they still want him to say it in one sentence. He tells them the problem is not the answer. Sheep recognise their shepherd because they have listened to him for a long time.
This Sunday the Church remembers its dedication. Solomon dedicated a Temple of stone, and the Maccabees rededicated it after it had been defiled. Both mattered. But in this Gospel the dedication that counts is a person: the one the Father sanctified and sent into the world, and the people who belong to him.
Recognising a voice takes time spent near it. A child knows a parent’s voice in a crowded room because they have heard it every day. If we want to know the Shepherd’s voice, the readings, the prayers and the Qurbana are where we hear it, week after week, until we can pick it out anywhere.