3 John 1:13

Overview - 3 John 1
He commends Gaius for his piety,
and hospitality,
to true preachers;
complaining of the unkind dealing of ambitious Diotrephes on the contrary side;
11 whose evil example is not to be followed;
12 and gives special testimony to the good report of Demetrius.
Treasury of Scripture Knowledge

3 John 1:13  (King James Version)
I had many things to write, but I will not with ink and pen write unto thee:

2 John 1:12