Acts 15:27
We have therefore sent Judas and Silas, who themselves also will tell you by word of mouth the same things.
Acts 15:22
Then it seemed good to the apostles and to the elders, with the whole assembly, to send chosen men from among them with Paul and Barnabas to Antioch, Judas called Barsabas and Silas, leading men among the brethren,
Acts 15:32
And Judas and Silas, being themselves also prophets, exhorted the brethren with much discourse, and strengthened them.
2 John 1:12
Having many things to write to you, I would not with paper and ink; but hope to come to you, and to speak mouth to mouth, that our joy may be full.
3 John 1:13
I had many things to write to thee, but I will not with ink and pen write to thee;