Numbers 35:21

א֣וֹ בְאֵיבָ֞ה הִכָּ֤הוּ בְיָדוֹ֙ וַיָּמֹ֔ת מֽוֹת־יוּמַ֥ת הַמַּכֶּ֖ה רֹצֵ֣חַֽ ה֑וּא גֹּאֵ֣ל הַדָּ֗ם יָמִ֛ית אֶת־הָרֹצֵ֖חַ בְּפִגְעוֹ־בֽוֹ׃

ἢ διὰ ἐν αὐτὸν τῇ χειρί, καὶ ἀποθάνῃ, θανάτω θανατούσθω ὁ πατάξας, φονευτής ἐστιν· θανάτῳ θανατούσθω ὁ φονεύων· ὁ ἄγχι. στεύων τὸ αἷμα ἀποκτενεῖ τὸν φονεύσαντα ἐν τῷ συναντῆσαι αὐτῶ.

Greek text from Swete's edition, CC BY-SA 4.0

O por enemistad lo hirió con su mano, y murió: el heridor morirá; es homicida; el pariente del muerto matará al homicida, cuando lo encontrare.

or if in hostility he strikes him with his hand and he dies, the one who struck him must surely be put to death; he is a murderer. When the avenger of blood finds the murderer, he is to kill him.