Ye also shall bear witness - You shall be witnesses to the world to urge on them the evidences that the Lord Jesus is the Messiah.

Have been with me - They had for more than three years seen his works, and were therefore qualified to bear witness of his character and doctrines.

From the beginning - From his entrance on the public work of the ministry, Matthew 4:17-22. Compare Acts 1:21-22.

And ye shall also bear witness,.... 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.

Shall bear witness (μαρτυρεῖτε)

Present tense, bear witness. So Rev. Or, it may be taken as imperative: bear ye witness.

And ye also shall bear witness, because ye have been with me from the beginning.

15:27 Ye also shall bear witness. The apostles had been with him from the beginning, and knew all the facts. If he was true, they knew it; if he stilled the waves and raised the dead, they knew it; if he rose from the tomb, they knew it (see Ac 1:21,22). They bore witness to him by word and left their words to us. They bore witness by life, gave up all for him and died for their testimony. Such testimony is the strongest human testimony ever offered to any fact.

27. ye also shall bear witness-rather, "are witnesses"; with reference indeed to their future witness-bearing, but putting the emphasis upon their present ample opportunities for acquiring their qualifications for that great office, inasmuch as they had been "with Him from the beginning." (See on [1865]Lu 1:2).

15:26,27. The blessed Spirit will maintain the cause of Christ in the world, notwithstanding the opposition it meets with. Believers taught and encouraged by his influences, would bear testimony to Christ and his salvation.