Numbers 35:30

כָּל־מַ֨כֵּה־נֶ֔פֶשׁ לְפִ֣י עֵדִ֔ים יִרְצַ֖ח אֶת־הָרֹצֵ֑חַ וְעֵ֣ד אֶחָ֔ד לֹא־יַעֲנֶ֥ה בְנֶ֖פֶשׁ לָמֽוּת׃

πᾶς πατάξας ψυχήν, διὰ μαρτύρων φονεύσεις τὸν φονεύσαντα, καὶ μάρτυς εἷς οὐ μαρτυρήσει ἐπὶ ψυχῆς ἀποθανεῖν·

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

Cualquiera que hiriere á alguno, por dicho de testigos, morirá el homicida: mas un solo testigo no hará fe contra alguna persona para que muera.

If anyone kills a person, the murderer is to be put to death on the testimony of the witnesses. But no one is to be put to death based on the testimony of a lone witness.