“The beginning of anxiety is the end of faith, and the beginning of true faith is the end of anxiety.”
Muller is often attributed with a version of this saying, and the quote (with attribution to Muller) appears as early as 1897 in The Churchman https://books.google.com/books?id=cpdOAQAAMAAJ&pg=RA25-PA45&lpg=RA25-PA45&dq=The+beginning+of+anxiety+is+the+end+of+faith,+and+the+beginning+of+true+faith+is+the+end+of+anxiety+%2B+the+churchman&source=bl&ots=3x_wtX82mF&sig=gGHZUKxXWa5BfvRfzeY_F8zA9dM&hl=; however, no source written by Muller can be found to confirm him as having said this.
Help us to complete the source, original and additional information
George Müller 49
German-English clergyman 1805–1898Related quotes

Apple's Tim Cook faces make-or-break week http://marketwatch.com/story/apples-cook-set-to-lead-post-jobs-era-offensive-2014-09-03 in MarketWatch (4 September 2014)

“Whatever solace the Christian faith could give was balanced by the anxiety it generated.”
Source: A Distant Mirror (1978), p. 469

Revelation 3:14 http://www.jw.org/en/publications/bible/nwt/books/revelation/3/
Revelation

speech at Lord Mayor’s Luncheon, Mansion House, London, November 10, 1942 : ( partial text http://www.churchill-society-london.org.uk/EndoBegn.html)
Referring to the British victory over the German Afrika Korps at the Second Battle of El Alamein in Egypt.
The Second World War (1939–1945)
Variant: This is not the end, this is not even the beginning of the end, this is just perhaps the end of the beginning.
Source: Their Finest Hour

“All true stories begin and end in a cemetery" - The Shadow of the Wind”
Source: The Shadow of the Wind