PHILETUS (fī-lē'tŭs, Gr. Philētos, worthy of love). Like several other men named in the Scriptures—Judas Iscariot, Alexander, Demas, and Hymenaeus, for example—Philetus is remembered only for the evil he did. Paul alone mentions him as a false teacher in the church of Ephesus who, together with Hymenaeus, held that “the resurrection has already taken place” (2Tim.2.18); that is, he did not radically deny a doctrine of the resurrection but allegorized it into a spiritual awakening or conversion and not a bodily resurrection as Paul taught in 1Cor.15.1-1Cor.15.58.

PHILETUS fī le’ təs, fĭ lə’ təs (Φίλητος, G5801, beloved). Named with Hymenaeus as representative teachers of false doctrine, doubtless of a Gnostic variety, which undermined the Christian faith (2 Tim 2:16-18). Paul warned Timothy to avoid such teaching, which spreads destructively “like gangrene.” Their basic doctrinal error was the claim that “the resurrection is past already.” They denied a bodily resurrection and allegorized the doctrine, turning all such teaching into figure and metaphor. They held that the resurrection took place in the lives of believers when they arose from ignorance and sin to a knowledge of God.

See also Hymenaeus.

International Standard Bible Encyclopedia (1915)

(Philetos (2Ti 2:17)):

1. The Nature of His Error:

This person is mentioned by Paul, who warns Timothy against him as well as against his associate in error, Hymeneus. The apostle speaks of Hymeneus and Philetus as instances of men who were doing most serious injury to the church by their teaching, and by what that teaching resulted in, both in faith and morals. The specific error of these men was that they denied that there would be any bodily resurrection. They treated all Scriptural references to such a state, as figurative or metaphorical. They spiritualized it absolutely, and held that the resurrection was a thing of the past. No resurrection was possible, so they taught, except from ignorance to knowledge, from sin to righteousness. There would be no day when the dead would hear the voice of Christ and come forth out of the grave. The Christian, knowing that Christ was raised from the dead, looked forward to the day when his body should be raised in the likeness of Christ’s resurrection. But this faith was utterly denied by the teaching of Hymeneus and Philetus.

2. How It Overthrew Faith:

This teaching of theirs, Paul tells us, had overthrown the faith of some. It would also overthrow Christian faith altogether, for if the dead are not raised, neither is Christ risen from the dead, and "ye are yet in your sins" (1Co 15:17).

The denial of the resurrection of the body, whether of mankind generally or of Christ, is the overthrow of the faith. It leaves nothing to cling to, no living Christ, who saves and leads and comforts His people. The apostle proceeds to say that teaching of this kind "eats as doth a gangrene," and that it increases unto more ungodliness. As a canker or gangrene eats away the flesh, so does such teaching eat away Christian faith. Paul is careful to say, more than once, that the teaching which denies that there will be a resurrection of the dead leads inevitably to "ungodliness" and to "iniquity."

See Hymenaeus.