Testing

When I think about the movies I like and the actors that play them, I can't help to realize how good some are at playing roles that sometimes are so different from what the actors are in real life.

If you lose some of your limitations, you also lose a part of what you were when you had them, to become what you now would be without them. For example, if you were to become immortal, then dying would be something you would lose, and never again be able to do. Immortal people do not die.

The same thing applies to omniscience, that wonderful ability of knowing everything, that all gods seem to share. If you know everything, there will be a few things you just will not do: wonder about something, the need to ask questions, discovery, learning... etc.
Once you know all, you stop needing those things. And in some cases, just like being immortal, some things you won't be able to do anymore: ignorance is one of those lost things.

We, regular humans, observe the world, pass knowledge from person to person, inquire, experiment, and test things, in order to understand and know the world around us.
Of all these things, all knowing beings need none of them, and can't do a few: like learning. Gods can't learn, because they know all already.

As such, the next time someone tells you that your god is testing your faith, or wants to find out something about us, remember that those are just some of the things he can't do.
He can't find out something he already knows (knows all), or test us to see what we do, because he knows that as well.

Like my favorite actors, some roles just aren't for God. Being curious is one of them.