boasting, (whereof) to glory (of), glorying, rejoice(-ing)

Concise Bible Dictionary:

There are eight different words in the Hebrew translated “glory,” but some occur only once. The principal of them are
3. kabod, “weight, honor, glory” (the word commonly used). It is frequently applied to God, as in “the God of glory” (Psa. 29:33The voice of the Lord is upon the waters: the God of glory thundereth: the Lord is upon many waters. (Psalm 29:3)); to Jehovah as “the King of glory” (Psa. 24:7-97Lift up your heads, O ye gates; and be ye lift up, ye everlasting doors; and the King of glory shall come in. 8Who is this King of glory? The Lord strong and mighty, the Lord mighty in battle. 9Lift up your heads, O ye gates; even lift them up, ye everlasting doors; and the King of glory shall come in. (Psalm 24:7‑9)); “the glory of Jehovah” that appeared on Mount Sinai, and that filled the tabernacle (Ex. 24:16-1716And the glory of the Lord abode upon mount Sinai, and the cloud covered it six days: and the seventh day he called unto Moses out of the midst of the cloud. 17And the sight of the glory of the Lord was like devouring fire on the top of the mount in the eyes of the children of Israel. (Exodus 24:16‑17); Ex. 40:34-3534Then a cloud covered the tent of the congregation, and the glory of the Lord filled the tabernacle. 35And Moses was not able to enter into the tent of the congregation, because the cloud abode thereon, and the glory of the Lord filled the tabernacle. (Exodus 40:34‑35)), and will fill the future temple (Ezek. 43:2-52And, behold, the glory of the God of Israel came from the way of the east: and his voice was like a noise of many waters: and the earth shined with his glory. 3And it was according to the appearance of the vision which I saw, even according to the vision that I saw when I came to destroy the city: and the visions were like the vision that I saw by the river Chebar; and I fell upon my face. 4And the glory of the Lord came into the house by the way of the gate whose prospect is toward the east. 5So the spirit took me up, and brought me into the inner court; and, behold, the glory of the Lord filled the house. (Ezekiel 43:2‑5)); also the glory pertaining to Israel, and to the Gentiles in the past and the future (1 Sam. 4:21-2221And she named the child I-chabod, saying, The glory is departed from Israel: because the ark of God was taken, and because of her father in law and her husband. 22And she said, The glory is departed from Israel: for the ark of God is taken. (1 Samuel 4:21‑22); Isa. 66:1212For thus saith the Lord, Behold, I will extend peace to her like a river, and the glory of the Gentiles like a flowing stream: then shall ye suck, ye shall be borne upon her sides, and be dandled upon her knees. (Isaiah 66:12)).
In the New Testament the word is δόξα, “esteem, honor, excellency of mind, body.” It is applied to created things, as the sun, moon, and stars (1 Cor. 15:4141There is one glory of the sun, and another glory of the moon, and another glory of the stars: for one star differeth from another star in glory. (1 Corinthians 15:41)); also to man as “the glory of God” (1 Cor. 11:77For a man indeed ought not to cover his head, forasmuch as he is the image and glory of God: but the woman is the glory of the man. (1 Corinthians 11:7)). The moral glory of the Lord Jesus Christ shone out in all His pathway on earth (John 1:1414And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth. (John 1:14); John 11:4040Jesus saith unto her, Said I not unto thee, that, if thou wouldest believe, thou shouldest see the glory of God? (John 11:40)). He speaks of the glory He had from eternity with the Father, and His acquired glory which He will graciously share with His joint heirs (John 17:5,22,245And now, O Father, glorify thou me with thine own self with the glory which I had with thee before the world was. (John 17:5)
22And the glory which thou gavest me I have given them; that they may be one, even as we are one: (John 17:22)
24Father, I will that they also, whom thou hast given me, be with me where I am; that they may behold my glory, which thou hast given me: for thou lovedst me before the foundation of the world. (John 17:24)
). Every tongue shall confess His lordship to the glory of God the Father (Phil. 2:1111And that every tongue should confess that Jesus Christ is Lord, to the glory of God the Father. (Philippians 2:11)). His glory will be revealed on earth, and He will be hailed “King of kings and Lord of lords” (Matt. 25:3131When the Son of man shall come in his glory, and all the holy angels with him, then shall he sit upon the throne of his glory: (Matthew 25:31); 1 Pet. 4:1313But rejoice, inasmuch as ye are partakers of Christ's sufferings; that, when his glory shall be revealed, ye may be glad also with exceeding joy. (1 Peter 4:13); Rev. 17:1414These shall make war with the Lamb, and the Lamb shall overcome them: for he is Lord of lords, and King of kings: and they that are with him are called, and chosen, and faithful. (Revelation 17:14); Rev. 19:1616And he hath on his vesture and on his thigh a name written, KING OF KINGS, AND LORD OF LORDS. (Revelation 19:16)). He is “the Lord of glory” (1 Cor. 2:88Which none of the princes of this world knew: for had they known it, they would not have crucified the Lord of glory. (1 Corinthians 2:8)).
Glory is often used as expressive of the proper distinction of a person, or of a company: as the glory of the Father (Rom. 6:44Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life. (Romans 6:4)); of the Word (John 1:1414And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth. (John 1:14)); of the children of God (Rom. 8:2121Because the creature itself also shall be delivered from the bondage of corruption into the glorious liberty of the children of God. (Romans 8:21)); and even of inanimate bodies heavenly and earthly (1 Cor. 15:40-4140There are also celestial bodies, and bodies terrestrial: but the glory of the celestial is one, and the glory of the terrestrial is another. 41There is one glory of the sun, and another glory of the moon, and another glory of the stars: for one star differeth from another star in glory. (1 Corinthians 15:40‑41)). Each has its own glory, and such glory is evidently not transferable; for if it could be transferred or communicated, it would lose its specially distinctive force. But glory may be in the nature of distinction conferred, as upon a creature by a superior, and even upon the Lord Himself, viewed as in the place of Man; as on the mount of transfiguration, and at the right hand of God (2 Pet. 1:1717For he received from God the Father honor and glory, when there came such a voice to him from the excellent glory, This is my beloved Son, in whom I am well pleased. (2 Peter 1:17); 1 Pet. 1:2121Who by him do believe in God, that raised him up from the dead, and gave him glory; that your faith and hope might be in God. (1 Peter 1:21)). And this is distinction in which others may in measure be permitted to share (John 17:2222And the glory which thou gavest me I have given them; that they may be one, even as we are one: (John 17:22)).
Glory may properly attach to a person even under an exterior by which it is not expressed. This was evidently the case with Christ when on earth: the flesh which He assumed in becoming Man served to veil His glory. In the same way the glory of the children of God is not yet manifest, and until it is manifest the glory is the exultation of the heart. This idea is not unfrequently found in the Psalms.
And further, this thought of glory hidden brings us to the glory of God, which, in its full expression, is the effulgence or display of Himself in the accomplishment of His counsels, in hope of which Christians rejoice. These counsels hid in God constitute, as one may say, His glory; and in their result they fully display His wisdom, love, and power. Meanwhile they have come to light through Christ being at the right hand of God, and the Holy Ghost given. We have now the light of the knowledge of the glory of God in the face of Jesus Christ.

Strong’s Dictionary of Greek Words:

Greek:
καύχημα
Transliteration:
kauchema
Phonic:
kow’-khay-mah
Meaning:
from 2744; a boast (properly, the object; by implication, the act) in a good or a bad sense
KJV Usage:
boasting, (whereof) to glory (of), glorying, rejoice(-ing)