2 Timothy 1:18
The Lord grant to him that he may find mercy of the Lord in that day: and in how many things he ministered to me at Ephesus…
On the assumption already mentioned as probable (that Onesiphorus was dead), this would, of course, be a prayer for the dead. The reference to the great day of judgment falls in with this hypothesis. Such prayers were, as we know from 2 Macc. 12:41-45, common among the Jews a century or more before St. Paul's time, and there is good ground for thinking that they entered into the ritual of every synagogue and were to be seen in the epitaphs in every Jewish burial-place. From the controversial point of view this may appear to favour the doctrine and practice of the Church of Rome, but facts are facts apart from their controversial bearing. It is, at any rate, clear that such a simple utterance of hope in prayer, like the Shalom (peace) of Jewish, and the Requiescat or Refrigerium of early Christian epitaphs, and the like prayers in early liturgies, though they sanction the natural outpouring of affectionate yearnings, are as far as possible from the full-blown Romish theory of purgatory.
(E. H. Plumptre, D. D.).
Parallel VersesKJV: The Lord grant unto him that he may find mercy of the Lord in that day: and in how many things he ministered unto me at Ephesus, thou knowest very well.