en_tn/deu/18/20.md

Yahweh continues speaking.

who speaks a word arrogantly

AT: "who dares to speak" or "who presumes to speak"

in my name

AT: "for me" or "with my authority" (See: rc://en/ta/man/translate/figs-metonymy)

If you say in your heart

AT: "If you ask yourself"

How will we recognize a message that Yahweh has not spoken?

Here "we" refers to the people of Israel. AT: "How will we know if the message that the prophet speaks is from Yahweh?"