Jethro speaks of giving them authority over people as putting them over people. Alternate translation: You must give them authority over people" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Possible meanings are 1) these numbers represent the exact amount of people in each group. Alternate translation: "leaders in charge of groups of 1,000 people, groups of 100 people, groups of 50 people, and groups of 10 people" or 2) these numbers are not exact, but represent groups of people of various sizes. Alternate translation: "leaders in charge of very small groups, small groups, large groups, and very large groups" (See: [[rc://en/ta/man/translate/translate-numbers]])