And they overcame him by the blood of the Lamb and the word of their testimony, and they did not love their lives unto death. Rev 12:11.
In Revelation the word "testimony" is usually associated with Jesus. The "testimony of Jesus" is a vision that John saw (Rev 1:2). It is the reason John is on Patmos in the first place (Rev 1:9). It is a possession of the end-time remnant (Rev 12:17). It is the spirit that inspires prophecy (Rev 19:10). It is the motivating force that encourages the martyrs (Rev 20:4). Jesus offers His testimony to the churches (Rev 22:16).
But the word "testimony" can also be associated with believers. The souls under the altar are martyred because of the testimony they had (Rev 6:9). The two witnesses offer testimony before they die (Rev 11:7). And the overcomers become so in part through the word of their testimony (Rev 12:11). Feeble and defective though it may be, our witness is modeled on His witness. As soon as we know something about Jesus, we start to tell others what we know.
In a way it is like the blind leading the blind! A friend of mine, Jim Park, visited St. Paul's Cathedral in London one day. After visiting, he needed to get back to the Waterloo train station during rush hour. A tour guide at the cathedral suggested that he take the bus instead of the underground and that seemed like a nice adventure.
It took him several minutes, however, to find out which side of the street he should stand on and which bus to take. Finally, he got on what he fervently hoped was the right bus and settled down for a ride that would last twenty minutes, or so he had been told. A couple of stops later, a well dressed blind gentleman got on the bus and sat close to Jim. The two men got acquainted and Jim learned that Roger worked at a music publishing house and was on his way home. Since he was not used to taking this particular route to Waterloo station, he asked Jim if he could guide him to the proper place.
Jim meekly stammered something about his own uncertainty, but offered to give the best help that he could. Fortunately for both of them, there was a third gentleman who guided them both off the bus and into the station. Roger said he could find his own train but Jim insisted on being his eyes. Somehow they were able to quickly work through the confusion and rush of the station in record time and Roger got on his train just as it was leaving.1
God, of course, knows where He is going and where He wants us to go. We are wise to consult Him at every turn. We are wise to submit our plans to Him. But as we learn more about His will and His ways, we become His eyes and ears on earth. We have the incredible privilege of being His witnesses here. In so doing we become like Him.