My grandmother passed away about 23 years ago. When she was alive, she bought copies of the Book of Mormon and put her picture and testimony inside to give away to people. She worked at a tourist information center, so had the opportunity to give many copies to interested people; some from many different countries. This is the testimony she included:
"I truly believe this book is another testament of Jesus Christ. I believe Joseph Smith is a true prophet.
Please read this book with a prayerful heart. Also read Acts 5:38,30.
Sincerly a friend,
Here is the scripture that she referenced.
38 And now I say unto you, Refrain from these men, and let them alone: for if this counsel or this work be of men, it will come to nought:
39 But if it be of God, ye cannot overthrow it; lest haply ye be found even to fight against God.