Adam Clarke's Bible Commentary-27 Verse 26. But when the Comforter is come] See on chap. xiv. 16. -27
John Gill's Bible Commentary
Ver. 27. And ye shall also bear witness , etc.] That is, of Christ; of all the things he did in Jerusalem, and in the land of the Jews; being eyewitnesses, and ministers, or servants of the word, who constantly attended upon him; of all the good he did to the bodies and souls of men; of the various miracles he wrought, and of the several doctrines which were taught by him: what they saw with their eyes, heard with their ears, and with their hands handled of the word of life, that they could declare, and did declare, and bore a faithful testimony to; they were to be, and were witnesses of his sufferings and death, of his resurrection from the dead, and ascension to heaven; they were a company of select men, chosen before of God, for this purpose; they were the most proper to be concerned herein, having been for a considerable time his intimates and associates: because ye have been with me from the beginning ; from the beginning of his ministry; for as soon as he entered on his public work, he called them to be followers of him; and who continued with him to the end, and therefore were the most capable of bearing a testimony concerning his person, doctrines, and works; of all he did and suffered, from first to last.
Matthew Henry Commentary
Verses 26, 27 - The blessed Spirit will maintain the cause of Christ in the world notwithstanding the opposition it meets with. Believers taught an encouraged by his influences, would bear testimony to Christ and his salvation __________________________________________________________________
Greek Textus Receptus
και 2532 CONJ υμεις 5210 P-2NP δε 1161 CONJ μαρτυρειτε 3140 5719 V-PAI-2P οτι 3754 CONJ απ 575 PREP αρχης 746 N-GSF μετ 3326 PREP εμου 1700 P-1GS εστε 2075 5748 V-PXI-2P
Vincent's NT Word Studies
27. Shall bear witness (martureite). Present tense, bear witness. So Rev. Or, it may be taken as imperative: bear ye witness.
