Are miracles evidence of the existence of God?

[Porcupine]

There are clearly things that gods just can't do.  Some are explicit.  The bronze age god in question told his followers that they were on their own against enemies with iron, for example.  The others are apparent.  That god fails to exert control over much, if anything, in our world is something that must be contended with by any genuine and well developed theology.  

It shouldn't be confusing when someone suggests that god may not have the control required for omnipotence.  That's a good example of people trying to figure out what kind of god that a god must be in this world, in this reality.  Of making god match facts on the ground.  God, in that conception, is a bit like Cassandra.  It knows everything, it wants the best, but it simply can;t effect those outcomes or forestall the worst in a world full of free agents who do not deign to do it's will or heed it's warnings.

If a being was not omnipotent but nevertheless very powerful .... it would only make sense for so much power to go to a being's head.

A God that believes that it is all-powerful has got to be a lot less improbable than a God that actually is all-powerful.

Power inflates egos. So if there was a Yahweh I can see why he would be so full of himself even though he's a total douche (I like to understate things).