Helaman 3:25

and so great was the prosperity of the church, and so many the blessings which were poured out upon the people, that even the High Priests and the teachers were themselves astonished beyond measure.—

The church grew so much. So many blessings were given to the people. Even the high priests and the teachers were very surprised.

The church thrived so dramatically, and God poured out so many blessings on the people, that even the high priests and teachers were stunned.