A society that has rejected the idea of truth will not recognise its conveyor.
The source of truth
When the Holy Spirit does come upon the disciples, the Spirit brings comprehension. All present hear the disciples speaking clearly in their own language. Peter then addresses them - and preaches a long sermon - impetuous Peter, who had kept misunderstanding Jesus all along, finally understands what Jesus had been trying to tell him.
Praying for revival
Great revivals of the Christian faith have normally been accompanied by the tangible presence of the Holy Spirit, for it is the Holy Spirit, and only the Holy Spirit, that can convince people of the truth.
How we need such a move of the Holy Spirit in our confused and bewildered society. May 20 is Pentecost Sunday, when we celebrate the coming of the Holy Spirit on the Apostles. Let us pray for a similar coming of the Holy Spirit amongst us today.
Jesus, in his final briefing of his disciples, as well as wanting to prepare his disciples for what he knows is coming, his crucifixion, he repeatedly tells them about the coming Holy Spirit. For Jesus the coming of the Holy Spirit was of paramount importance. He even goes as far as to say that is better for his disciples that he leaves them so that he can send them the indwelling Holy Spirit - God's empowering presence who is with them and will be in them. But he also stresses that the Spirit will be the Spirit of Truth who will teach them all things.
What is truth?
It's fashionable in our society to say that all truth is relative rather than absolute. Indeed, the only absolute truth is the statement 'all truth is relative', which seems to me to be self-contradictory but anyway, this is the great banner of post-modernity.
People like to think that it is new and sophisticated but actually it is as old as the hills. Was it not Pontius Pilate who, when Jesus said: 'For this I was born, and for this I came into the world, to testify to the truth. Everyone who belongs to the truth listens to my voice,' asked Jesus: 'What is truth?' Jesus tells his disciples that the world cannot receive the Spirit of Truth because it neither sees nor knows him.