What is God's glory? The Bible speaks of God's glory in two primary ways. First, there is the intrinsic glory of God, which is the sum total of all His divine perfections and attributes. It is who God is—His infinitely vast greatness. Glory in the Old Testament (kabod) originally meant "heaviness," "importance," or "significance." It came to represent the stunning magnificence of certain objects, such as the blazing sun or the regal majesty displayed by a king. Hence, glory came to be used to describe the magnificent splendor and awesome radiance of God Himself revealed to man.
In the New Testament, the word for "glory" is doxa, which means "an opinion" or "an estimate" of something. When used of someone's reputation, it means "importance," "greatness," "renown," or "significance." God's intrinsic glory is the revelation of the greatness of His divine attributes to His creatures. It involves God's greatness and grandeur being manifested to sinners, especially in the salvation of man from sin. No one can add anything to God's intrinsic glory. God is who He is, never diminishing, never increasing, forever the same, the sovereign Ruler, all-knowing, all-powerful, all-present, all-true, all-wise, loving, grace-giving, merciful, righteous, and wrathful. It is this intrinsic glory that God delights in making known to His creatures.
Second, the Bible also speaks of the ascribed glory of God, or the glory that is given to Him. Doxa also has to do with expressing praise to God based upon the revelation of His supreme majesty. The only rightful response to the display of God's perfections must be to give Him glory. Man must bring the praise due His name. Man must give the worship that belongs exclusively to Him. The display of God's intrinsic glory causes man to give ascribed glory to God. The more man beholds God's intrinsic glory in salvation, the more man ascribes glory to God.
This, then, is the centerpiece of God's saving purpose in the universe—the revelation and magnification of His own glory. This is what is at the very center of God's being—the passionate pursuit of displaying His own glory for His own glory. This is what should be at the center of every human life—the promotion of the glory of God, that is, beholding and adoring His glory. This is what is primary in the salvation of every lost sinner—the revealing of the glory of God so that sinners might rejoice in the glory of God. No wonder Paul writes: "For from him and through him and to him are all things. To him be glory forever. Amen" (Rom. 11:36).
This excerpt is taken from Foundations of Grace by Steven Lawson.