It can be made explicit that they were afraid of the Moabites. Alternate translation: "they saw a group of Moabite raiders coming toward them and they were afraid" (See: [[rc://en/ta/man/translate/figs-explicit]])
Here "the man" refers to his dead body. This can be made explicit. Alternate translation: "As soon as the dead man's body touched the bones of Elisha" (See: [[rc://en/ta/man/translate/figs-explicit]])