Do not be afraid of killing the false prophet

"When a prophet speaks in the name of the LORD, if the thing does not come about or come true, that is the thing which the LORD has not spoken. The prophet has spoken it presumptuously; you shall not be afraid of him.

Hebrew

כב אֲשֶׁר יְדַבֵּר הַנָּבִיא בְּשֵׁם יְהוָה, וְלֹא-יִהְיֶה הַדָּבָר וְלֹא יָבֹא--הוּא הַדָּבָר, אֲשֶׁר לֹא-דִבְּרוֹ יְהוָה: בְּזָדוֹן דִּבְּרוֹ הַנָּבִיא, לֹא תָגוּר מִמֶּנּוּ. {ס}

Greek

22 ὅσα ἐὰν λαλήσῃ ὁ προφήτης ἐπὶ τῷ ὀνόματι κυρίου, καὶ μὴ γένηται τὸ ῥῆμα καὶ μὴ συμβῇ, τοῦτο τὸ ῥῆμα, ὃ οὐκ ἐλάλησεν κύριος· ἐν ἀσεβείᾳ ἐλάλησεν ὁ προφήτης ἐκεῖνος, οὐκ ἀφέξεσθε αὐτοῦ.

• Parashah: Shoftim
• Sefer HaChinuch: 519
• Mishneh Torah: Knowledge — Idolatry and Gentile Customs

• Deuteronomy 18:22

Enumeration and classification from BibleData. The Greek is the Septuagint reading of the same verse, carried by the source for comparison.