Greek:
In the New Testament, a present tense verb in the imperative mood with μη is used to make a prohibition. GGBB counts only eight instances of a prohibition using an aorist imperative (always with Jesus as the speaker). cf principle 22
Hebrew:
אַל is used with a second person YQTL to make a prohibition. video or Gesenius §152f.
וַיֹּ֨אמֶר אֵלֶ֤יהָ אֵלִיָּ֙הוּ֙ אַל־תִּ֣ירְאִ֔י בֹּ֖אִי עֲשִׂ֣י כִדְבָרֵ֑ךְ אַ֣ךְ עֲשִׂי־לִ֣י מִ֠שָּׁם עֻגָ֨ה קְטַנָּ֤ה בָהַרִאשֹׁנָה֙ וְהֹוצֵ֣אתְ לִ֔י וְלָ֣ךְ וְלִבְנֵ֔ךְ תַּעֲשִׂ֖י בָּהַאַחֲרֹנָֽה׃
and Elijah said to her “do not be afraid…” 1 Kings 17:13