en_tn/mrk/10/42.md

Jesus called them

"Jesus called his disciples"

those who are considered rulers of the Gentiles

This can be stated in active form. Possible meanings are 1) people in general consider these people the rulers of the Gentiles. Alternate translation: "those whom people consider to be the rulers of the Gentiles" or 2) the Gentiles consider these people their rulers. Alternate translation: "those whom the Gentiles think of as their rulers" (See: rc://en/ta/man/jit/figs-activepassive)

dominate

have control or power over

exercise authority

"flaunt their authority." This means that they show or use their authority in an overbearing way.