Parallel
2 John 1:8
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
Look to yourselves, that we lose not those things which we have wrought (note: Or, gained. Some copies read, which ye have gained, but that ye receive, etc.), but that we receive a full reward.
Watch yourselves, so that you do not lose what we have worked for (note: NE and WH what you have worked for), but that you may be fully rewarded.