The interpretation timeline
Jude 1:19 Douay-Rheims

These are they, who separate themselves, sensual men, having not the Spirit.

A.D. 215 – 1871 5 witnesses

Patristic

before A.D. 750
215
A.D.
c. A.D. 150–215
“"Those," he says, "separating" the faithful from the unfaithful, be convicted according to their own unbelief. And again those separating from the flesh. He says, "Animal not having the spirit;" that is, the spirit which is by faith, which supervenes through the practice of righteousness.”
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“The enemy of unity has no share in God's love. Those who are outside the church do not have the Holy Spirit, and this verse is written of them.”

Post-Reformation

c. 1650 – 1900
1832
A.D.
Adam Clarke Methodist
1762–1832
“Who separate themselves - From the true Church, which they leave from an affectation of superior wisdom. Sensual - Ψυχικοι· Animal - living as brute beasts, guided simply by their own lusts and passions, their Bible being the manifold devices and covetousness of their own hearts; for they have not the Spirit - they are not spiritually minded; and have no Holy Ghost, no inspiration from God.”
Source
1871
A.D.
1871
“These be they--showing that their characters are such as Peter and Paul had foretold. separate themselves--from Church communion in its vital, spiritual reality: for outwardly they took part in Church ordinances (Jde 1:12). Some oldest manuscripts omit "themselves": then understand it, "separate," cast out members of the Church by excommunication (Isa 65:5; Isa 66:5; Luk 6:22; Joh 9:34; compare "casteth them out of the Church;" Jo3 1:10). Many, however, understand "themselves," which indeed is read in some of the oldest manuscripts as English Version has it. Arrogant setting up of themselves, as having greater sanctity and a wisdom and peculiar doctrine, distinct from others, is implied. sensual--literally, "animal-souled": as opposed to the spiritual, or "having the Spirit." It is translated, "the natural man," Co1 2:14. In the threefold division of man's being, body, soul, and spirit, the due state in God's design is, that "the spirit," which is the recipient of the Holy Spirit uniting man to God, should be first, and should rule the soul, which stands intermediate between the body and spirit: but in the animal, or natural man, the spirit is sunk into subserviency to the animal soul, which is earthly in its motives and aims. The "carnal" sink somewhat lower, for in these the flesh, the lowest element and corrupt side of man's bodily nature, reigns paramount. having not the Spirit--In the animal and natural man the spirit, his higher part, which ought to be the receiver of the Holy Spirit, is not so; and therefore, his spirit not being in its normal state, he is said not to have the spirit (compare Joh 3:5-6). In the completion of redemption the parts of redeemed man shall be placed in their due relation: whereas in the ungodly, the soul severed from the spirit shall have for ever animal life without union to God and heaven--a living death.”
Source

Undated

date unknown
date
unknown
Glossa Ordinaria Medieval
“Not having the Spirit. Because they do not have the Holy Spirit, by whom the Church is gathered together, is made spiritual, therefore they are animal, ignorant, improvident; therefore they flow apart, because they do not have the rennet of charity.”
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.