I don't think that when he said "our God" that he was admitting that there were other gods but rather that he was distinguishing his God from all the others.In other words the others are false and his is the one and true God, a typical Christian argument.
There is nothing people will not maintain when they are slaves to superstition
http://chatpilot-godisamyth.blogspot.com/
http://chatpilot-godisamyth.blogspot.com/