When I was in this Doomsday cult would guilt people to do more, by using the example of Joshua circling Jericho many times more right before the walls fell down.
I remember reading that back in the early 1940's, the WT was using the "Joshua circling Jericho many more times before the walls fell" to get people to speed up their activity. It has now been 70+ years. I have a lot of the volumes from the early 1940's but don't have an index to find it.