LXX Deut 7:17

᾿Εὰν δὲ λέγῃς ἐν τῇ διανοίᾳ σου ὅτι Πολὺ τὸ ἔθνος τοῦτο ἢ ἐγώ, πῶς δυνήσομαι ἐξολεθρεῦσαι αὐτούς; ;

You may say in your heart, “These nations are greater than we are; how can we drive them out?”