That > [So that]
5 He now was grown right wise, and wondrous sage.
right > very
6 Great pleasure had those stranger knights, to see
stranger > new-come
7 His goodly reason, and grave personage,
personage > {The body and appearance as distinct from clothing}
8 That his disciples both desired to be;
That > [So that]
9 But Alma thence them led to the hindmost room of three.