2 Thessalonians 1:10

when he shall come to be glorified in his saints, and to be marvelled at in all them that believed (because our testimony unto you was believed) in that day. [In that day when Jesus comes to be glorified, those who refuse to know God, and those who disobey the gospel, shall receive a punishment which is here clearly described as eternal. The word "destruction" imports the wreck or dissolution of the organism, but not the annihilation of the essence. The rest of the sentence implies banishment and separation from the presence of the Lord with all its joys, and from all participation in that manifestation of his power which will show itself in the glorification of his redeemed (Matthew 25:41; Colossians 3:4). The latter thought is expanded by Paul throughout the remainder of the chapter. In that day Jesus shall be "marvelled at in all them that believe," because they shall reflect his glory as a mirror gives back the radiance of the sun (2 Corinthians 3:18). The parenthesis ("because," etc.) is injected into the thought for the purpose of identifying the Thessalonians with the believers, and so with the glorification promised to believers.]