Ann, could it be this quote?:
The author acknowledges that in this book he presents the thought that the Lord's saints might expect to be with Him in glory at the ending of the Gentile Times. This was a natural mistake to fall into, but the Lord overruled it for the blessing of His people. The thought that the Church would all be gathered to glory before October, 1914, certainly did have a very stimulating and sanctifying effect upon thousands, all of whom accordingly can praise the Lord - even for the mistake.
From the 1916 Foreword to Russell's The Time is At Hand!