Who does the Spirit "lead into all the truth"?
A few weeks ago (Trinity Sunday as it happened - this was the lectionary gospel reading this year), I preached on John 16:12-15. That passage includes this sentence concerning the Spirit:
"But when he, the Spirit of truth, comes, he will guide you into all the truth."
The question is, who is "you"? Who, exactly, does the Sprit promise to lead into all truth?