Lyric discussion by pt 

Cover art for Ventilator Blues lyrics by Rolling Stones, The

so is it about the Lord?

Sure would seem to fit considering what follows.

Course i heard it was a song about the recording conditions.......they had one fan, and the whole place was just miserably hot.

People. A “ventilator” is a gun. It’s been a slang word for a gun for a long time.