I will not blot out his name - This may be an allusion to the custom of registering the names of those who were admitted into the Church in a book kept for that purpose, from which custom our baptismal registers in Churches are derived. These are properly books of life, as there those who were born unto God were registered; as in the latter those who were born in that parish were enrolled. Or there may be allusions to the white raiment worn by the priests, and the erasing of the name of any priest out of the sacerdotal list who had either sinned, or was found not to be of the seed of Aaron. In Middoth, fol. 37, 2: "The great council of Israel sat and judged the priests. If in a priest any vice was found they stripped of his white garments and clothed him in black, in which he wrapped himself, went out, and departed. Him in whom no vice was found they clothed in white, and he went and took his part in the ministry among his brother priests."

I will confess his name - I will acknowledge that this person is my true disciple, and a member of my mystical body. In all this there may also be an allusion to the custom of registering citizens. Their names were entered into books, according to their condition, tribes, family, etc.; and when they were dead, or had by unconstitutional acts forfeited their right of citizenship, the name was blotted out, or erased from the registers. See the note on Exodus 32:32.

that. See on ch.

Revelation 2:7 He that has an ear, let him hear what the Spirit said to the churches; To him that overcomes will I give to eat of the tree of life...

1 Samuel 17:25 And the men of Israel said, Have you seen this man that is come up? surely to defy Israel is he come up: and it shall be...

the same. See on ver.

Revelation 3:4 You have a few names even in Sardis which have not defiled their garments; and they shall walk with me in white: for they are worthy.

Revelation 19:8 And to her was granted that she should be arrayed in fine linen, clean and white: for the fine linen is the righteousness of saints.

blot.

Exodus 32:32,33 Yet now, if you will forgive their sin--; and if not, blot me, I pray you, out of your book which you have written...

Deuteronomy 9:14 Let me alone, that I may destroy them, and blot out their name from under heaven...

Psalm 69:28 Let them be blotted out of the book of the living, and not be written with the righteous.

Psalm 109:13 Let his posterity be cut off; and in the generation following let their name be blotted out.

the book.

Revelation 13:8 And all that dwell on the earth shall worship him...

Revelation 17:8 The beast that you saw was, and is not; and shall ascend out of the bottomless pit, and go into perdition...

Revelation 20:12,15 And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened...

Revelation 21:27 And there shall in no wise enter into it any thing that defiles, neither whatever works abomination, or makes a lie...

Revelation 22:19 And if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life...

Philippians 4:3 And I entreat you also, true yoke fellow, help those women which labored with me in the gospel, with Clement also...

confess.

Malachi 3:17 And they shall be mine, said the LORD of hosts, in that day when I make up my jewels; and I will spare them...

Matthew 10:32 Whoever therefore shall confess me before men, him will I confess also before my Father which is in heaven.

Luke 12:8 Also I say to you, Whoever shall confess me before men, him shall the Son of man also confess before the angels of God:

Jude 1:24 Now to him that is able to keep you from falling, and to present you faultless before the presence of his glory with exceeding joy,

The Loved Ones Chastened
The fact is, that this world is not the place of punishment. There may now and then be eminent judgments; but as a rule God does not in the present state fully punish any man for sin. He allows the wicked to go on in their wickedness; he throws the reins upon their necks; he lets them go on unbridled in their lusts; some checks of conscience there may be; but these are rather, as monitions than as punishments. And, on the other hand, he casts the Christian down; he gives the most afflictions to the …
Charles Haddon Spurgeon—Spurgeon's Sermons Volume 3: 1857

Inspiration.
"And unto the angel of the church in Sardis write, These things saith He that hath the seven Spirits of God."-- Rev. iii. 1. We do not speak here of the New Testament. Nothing has contributed more to falsify and undermine faith in the Scripture and the orthodox view concerning it than the unhistoric and unnatural practise of considering the Scripture of the Old and the New Testament at the same time. The Old Testament appears first; then came the Word in the flesh; and only after that the Scripture …
Abraham Kuyper—The Work of the Holy Spirit

Laodicea
We reach, in this last Epistle, the lowest point of Judah's degradation, in that long line of departure from God, from the day Israel left her "first love," even the day of her espousals, when brought forth out of Egypt, down, down through one vast scene of idolatry and judgment, until we find that nation described in the Epistle to the Assembly in Laodicea in a condition of spiritual destitution such as characterised the People in the period of the Minor Prophets. Indeed, so complete is the correspondence, …
E.W. Bullinger—Commentary on Revelation