en_tn_condensed/isa/03/04.md

I will place mere youths as their leaders, and the young will rule over them

These phrases mean basically the same thing. Possible meanings are 1) "I will place young people as their leaders, and those young people will rule over them" or 2) "youths" is a metaphor for simple and foolish men. AT: "I will place over them leaders who are immature, like young people, and those bad leaders will rule over them" (See: rc://en/ta/man/translate/figs-parallelism and rc://en/ta/man/translate/figs-metaphor)

I will place

Here the word "I" refers to Yahweh. This can also be stated clearly. AT: "Yahweh says, 'I will place" (See: rc://en/ta/man/translate/figs-explicit)