Here the 1830 typesetter inadvertently omitted the adverb up, undoubtedly because the following preposition, upon, also begins with up. There are a number of cases in the original text of up upon, and for several of these the up has been accidentally omitted in the printed editions (see the discussion and list of examples under Alma 2:15). The critical text will restore the original instance of up upon here in Alma 62:22.
Summary: Restore the adverbial up in Alma 62:22; it was accidentally dropped by the 1830 typesetter since the following word, upon, began with the same up.