12:23 To the general assembly - The word properly signifies a stated convention on some festival occasion. And church - The whole body of true believers, whether on earth or in paradise. Of the first - born - The first - born of Israel were enrolled by Moses; but these are enrolled in heaven, as citizens there. It is observable, that in this beautiful gradation, these first - born are placed nearer to God than the angels. See Jam 1:18. And to God the Judge of all - Propitious to you, adverse to your enemies. And to the spirits - The separate souls. Of just men - It seems to mean, of New Testament believers. The number of these, being not yet large, is mentioned distinct from the innumerable company of just men whom their Judge hath acquitted. These are now made perfect in an higher sense than any who are still alive. Accordingly, St. Paul, while yet on earth, denies that he was thus made perfect, Php 3:12.

Hebrews 12:23 Parallel Commentaries

Thanksgiving after Chastisement.
(Preached on the Cessation of Cholera, Feb. 1832). TEXT: HEB. xii. 11, 12. MY devout friends, the terrific form of the devastating -L-l- disease which has so long been raging in this great city has now left us, though we cannot feel entire confidence that it will not return; for it would not be the first instance if it appeared a second time, in a place so densely populated, to repeat its devastations. But are we right in availing ourselves of the apparent cessation which has been granted to us through …
Friedrich Schleiermacher—Selected Sermons of Schleiermacher

Chastisement
Peradventure this morning I may have some within these walls who are passing under the chastising hand of God. It is to them that I shall have to speak. You are not all of you in trial, I know no father chastises his whole family at once. It is so seldom that God afflicts people, after all, compared with their faults, that we must not expect to find in this congregation, perhaps, one-half of the children of God passing under the rod of the covenant; but if you are not under it now, you will have …
Charles Haddon Spurgeon—Spurgeon's Sermons Volume 1: 1855

The Blood of Sprinkling
Our apostle next tells us what we are come to. I suppose he speaks of all the saints after the death and resurrection of our Lord and the descent of the Holy Ghost. He refers to the whole church, in the midst of which the Holy Spirit now dwells. We are come to a more joyous sight than Sinai, and the mountain burning with fire. The Hebrew worshipper, apart from his sacrifices, lived continually beneath the shadow of the darkness of a broken law; he was startled often by the tremendous note of the …
Charles Haddon Spurgeon—Spurgeon's Sermons Volume 32: 1886