Joseph, in a letter dated September 4, 1837, reports that John F. Boynton believed the Kirtland Safety Society was instituted by command of God and would not fail.

Date: Sep 4, 1837
Type: Letter
Source: Joseph Smith, Jr.
LDS
Hearsay: Holograph
Direct
Reference: Joseph Smith, Letter to John Corrill, September 4, 1837, The Joseph Smith Papers website, accessed December 5, 2023
Scribe/Publisher: Joseph Smith, Jr.
People: John F. Boynton, Joseph Smith, Jr.
Audience: John Corrill
Transcription: . . . Elder Boynton again arose & still attributed his difficulties to the failure of the Bank, stating that he had understood the Bank was instituted by the will of God, and he had been told that it never should fail let men do what they would . . .
Source Link: https://www.josephsmithpapers.org/paper-summary/letter-to-john-corrill-and-the-church-in-missouri-4-september-1837/4
Citations in Mormonr Qnas: Prophetic Fallibility