Proslogion

Is this the age of the age, or ages of ages?—The eternity of God contains the ages of time themselves, and can be called the age of the age or ages of ages.

Is this, then, the age of the age, or ages of ages? For, as an age of time contains all temporal things, so thy eternity contains even the ages of time themselves. And these are indeed an age, because of their indivisible unity; but ages, because of their endless immeasurability. And, although thou art so great, O Lord, that all things are full of thee, and exist in thee; yet thou art so without all space, that neither midst, nor half, nor any part, is in thee.