Mormon Life says: Like this blog's perspective on bearing a more specific testimony.
Mormon testimonies tend to be small-t trinitarian:
1. I know that God lives.
2. I know that Jesus is the Christ.
3. I know that the Church is true.
You will hear this formula every week in Mormon services. There is often a variation on #3, viz.:
3a. I know that Joseph Smith was a prophet.
3b. I know that the Book of Mormon is true.
3c. I know that Thomas S. Monson is God’s prophet on the earth today.
For Mormons, these beliefs, often characterised as “knowledge,” represent the heart of what it means to be a believing Mormon.