These phrases refer to other servants. Alternate translation: "yet another servant ... many other servants" (See: [[rc://en/ta/man/translate/figs-ellipsis]])
This refers to servants that the owner sent. The phrase "in the same way" refers to them being mistreated. This can be written clearly. Alternate translation: "They also mistreated many other servants whom he sent" (See: [[rc://en/ta/man/translate/figs-explicit]])