en_tn/deu/18/18.md

I will raise up a prophet for them

Yahweh appointing a person to be a prophet is spoken of as if Yahweh would raise or lift the person up. (See: rc://en/ta/man/jit/figs-metaphor)

from among their brothers

"from among their fellow Israelites"

I will put my words in his mouth

Yahweh telling the prophet what to say is spoken of as if Yahweh would put words in the prophet's mouth. (See: rc://en/ta/man/jit/figs-metaphor)

speak to them

"speak to the people of Israel"