Why does the Watchtower have to print so many different magazines every two weeks? The truth is out since over 2000 years, and the truth didn't change since the time of Jesus. So why does the Watchtower have to give us the latest version of the truth every 2 weeks?
What would happen to the Watchtower Society, if witnesses would stop buying new literature every week, and would go to the hall with old Watchtower magazines instead?
Two things would happen. First, They would stop making money off people, and they would have to shut down many buildings in Brooklyn and elsewhere. Second, people wouldn't want to go to the meetings anymore, because they already studied those watchtower magazines.
This means that the Watchtower could not survive with the bible only. This seems to contradict what is written in 2 Timothy 3:16, which says, All Scripture is inspired by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be complete, equipped for every good work" (Revised Standard Version).