An poignant question which might make a few JWS a bit uncomfortable.
The words of Jesus said that no one knows of the time of his return not the ancient Israelites or the first era Christians and Jesus admonished those who would set a time upon god's own sacred time.
Words spoken by Jesus that certain men failed to adhere to who self proclaimed preachers of the Gospel.
The executive leaders of the Watchtower Corporation (GB) have said that they were the Faith Slave to Jesus fulfilling his instructions to spread the word of the new system of things.
Yet over the past 140 years the WTS and the men who have been running that organization have been endeavoring false prophets, selling a tainted corrupt version of the gospel through the literature these men published.