{Ye have sent} (humeis apestalkate). Emphatic use of
humeis (ye) and perfect active indicative of apostell(935c),
official and permanent fact and so the witness of the Baptist has
to be recognized as trustworthy by the Sanhedrin. The reference
is to the committee in  1:19-28 . {He hath borne witness}
(memartur(886b)en). Perfect active indicative of marture(935c) showing
the permanent and abiding value of John's testimony to Christ as
in  1:34  3:26  5:37 . So also  19:35  of the testimony
concerning Christ's death. This was the purpose of the Baptist's
mission ( 1:7 ).