Locke: The God Problem

[IV. x. 4] "That eternal being must be most powerful. Next, it is evident, that what had its being and beginning from another, must also have all that which is in, and belongs to its being from another too. All the powers it has, must be owing to, and received from the same source. This eternal source then of all being must also be the source and original of all power; and so this eternal being must be also the most powerful."

I think that what Locke is saying here is that all beings that have a "power" (I guess a Godly character) must get their power from another higher being. Is Locke suggesting here that God is not the highest power? and that God must have gotten his/her powers from another higher God of some sort? I was a little confused by what he was saying here. It is of most religions to believe in one higher power and nothing about that. I am a strong believer in God, but this statement made me think... is there another One that God got his powers from? No one really knows nor will no one ever know, but it is something interesting to think about.