Verily believe to be true

1. Alma 30: 53
     53 But behold, the devil hath deceived me; for he appeared unto me in the form of an angel, and said unto me: Go and reclaim this people, for they have all gone astray after an unknown God. And he said unto me: There is no God; yea, and he taught me that which I should say. And I have taught his words; and I taught them because they were pleasing unto the carnal mind; and I taught them, even until I had much success, insomuch that I verily believed that they were true; and for this cause I withstood the truth, even until I have brought this great curse upon me.
2. D&C 80: 4
     4 Therefore, declare the things which ye have heard, and verily believe, and know to be true.
3. D&C 128: 4
     4 Then, let there be a general recorder, to whom these other records can be handed, being attended with certificates over their own signatures, certifying that the record they have made is true. Then the general church recorder can enter the record on the general church book, with the certificates and all the attending witnesses, with his own statement that he verily believes the above statement and records to be true, from his knowledge of the general character and appointment of those men by the church. And when this is done on the general church book, the record shall be just as holy, and shall answer the ordinance just the same as if he had seen with his eyes and heard with his ears, and made a record of the same on the general church book.