LXX Deut 20:3

ὑμεῖς πορεύεσεσθε σήμερον εἰς τὸν πόλεμον ἐπὶ τοὺς ἐχθροὺς ὑμῶν, μὴ ἐκλυέσθω ἡ καρδία ὑμῶν μὴ φοβεῖσθε μηδὲ θραύεσθε μηδὲ ἐκκλίνετε ἀπὸ προσώπου αὐτῶν,

saying to them, “Hear, O Israel, today you are going into battle with your enemies. Do not be fainthearted or afraid; do not be alarmed or terrified because of them.