Acts 22:15

15 For thou shalt be his witness unto all men of what thou hast seen and heard.

Acts 22:15 In-Context

13 Came unto me, and stood, and said unto me, Brother Saul, receive thy sight. And the same hour I looked up upon him.
14 And he said, The God of our fathers hath chosen thee, that thou shouldest know his will, and see that Just One, and shouldest hear the voice of his mouth.
15 For thou shalt be his witness unto all men of what thou hast seen and heard.
16 And now why tarriest thou? arise, and be baptized, and wash away thy sins, calling on the name of the Lord.
17 And it came to pass, that, when I was come again to Jerusalem, even while I prayed in the temple, I was in a trance;
The King James Version is in the public domain.