It’s easier to defend truth than absolute truth because, by its very definition, it is variable, observable and dependent. The ground is flat is true, but so is the earth round; spring is the season of newness and birth, but is also ripe time for pruning; and words have the power to bless yet curse in the same breath. The paradox is that truth is meaningless unless we know its source.
The idea of a source is that something is derived from it. My mother is an excellent source of freshly-baked butter biscuits, but so is my neighbour. This, then, allows us to distinguish between a variable source and the invariable source. Like water may be sourced from underground or from the sky, but hail must come from the sky. Nature is a tangible manifestation of what our human mind cannot fully comprehend. In other words, a single truth can be made manifest in a number of ways.
Something happens when we add “absolute”, though. Absolutism means unquestionably definitive. Make no mistake; though we may throw around the word “absolutely” like any other affirmative response, we really have not grasped its finality—otherwise we would not use it so cheaply. We are to choose our words wisely and not expect finality of anything in which we are unsure of its absolutism.
Metaphysical premise states that something cannot come from nothing. Thus, we can infer that all things must come from something, even if we cannot see the thing and it is only tangentially represented in our physical realm. Take gravity, for example. There is nothing to suggest that gravity exists except for its expression (on other things)—or, what we may call a tangential manifestation comprehensible to human understanding.
The same goes for words. Words are a tool to express what only the soul can come to know. Varying permutations offer a multitude of expressions and meanings—but they are all the same words. What I am getting at is there is an absolute limit to the number of letters in an alphabet, but limitless number of meanings derived from combinations of these letters.
The glory of God is made manifest the same way, and is an indication to us how a thing can move into, move out of, or reside in truth. Absolute glory is the highest (and purest) level of expression of a given thing—of which there is no end. There is no (enduring) earthly expression of this absolute glory because we live in a finite world with limited resources, limited time, limited capacities, and, finally, a limited mind. The only one of these which may be expanded without the use of agents or chemical processes is the mind. Something in us can somehow comprehend the width and length and height and depth of absolute glory because we know there is a finite source from which we derive truth.