"....Ran....."

Acts 8:30
"So Philip ran to him, and heard him reading the prophet Isaiah and said "Do you understand what you are reading?"

The first thing that pops up is that Philip went all out running to the chariot.  There was probably a procession with a lot of chariots, horses, carts, and people.  The Sprit got him through any kind of security detail that might have been there.  Second, Philip was educated and knew the scriptures.  He knew it was Isaiah and he knew about the passage's fulfillment.  But he didn't stop there.  He made himself available to be used by God and for God to speak through him.  He opened his mouth to be used by the Holy Spirit.  The Holy Spirit didn't command him to go to the chariot and give him the message beforehand.

Application - I believe that there are many times in our lives when we do not have the answers until we actually open our mouths and the Holy Spirit fills our mouths.  The freeing thing of this will be that we don't have to worry about the results and all the glory is His and His alone.  I need to see and be available for any and all opportunities to be like a stereo's speaker where all the noise just goes through me.