This is the end of the background information and the setting of the story of Jesus healing the ten lepers. (See: [[rc://en/ta/man/translate/writing-background]])
The idiom "to lift up one's voice" means to speak loudly. Alternate translation: "they called with loud voices" or "they called aloud" (See: [[rc://en/ta/man/translate/figs-idiom]])
They were specifically asking to be healed. Alternate translation: "please show us mercy by healing us" (See: [[rc://en/ta/man/translate/figs-explicit]])