This is not merely a command but also a remarkably fulfilled prophecy. Think of the apparent absurdity of a motley band of followers of an itinerant preacher, who only had a three-year career, setting forth to "be witnesses unto me...unto the uttermost part of the earth." Yet that is exactly what has happened. The only answer to such an anomaly is the divine origin of the prophecy, implemented by the presence and power of the Holy Spirit.

Source:

KJV Defenders Study Bible, by Dr. Henry Morris, Ph.D.
Publisher: Thomas Nelson
Language: English
DEF 10 ISBN 0-529-10444-x
DEF 10-1 ISBN 0-529-10445-8