Revelation 11:3 speaks of two witnesses who would prophesy for 1,260 days.

So in the fulfillment of Revelation chapter 11, the anointed brothers who took the lead at the time of the establishment of God’s Kingdom in heaven in 1914 preached “in sackcloth” for three and a half years.

Interestingly, Revelation 11:1, 2 links these events to a time when the spiritual temple would be measured, or evaluated. Malachi chapter 3 mentions a similar inspection of the spiritual temple, followed by a time of cleansing. (Mal. 3:1-4) How long did this inspection and cleansing work take? It extended from 1914 to the early part of 1919. This period of time includes both the 1,260 days (42 months) and the symbolic three and a half days referred to in Revelation chapter 11.