LXX Num 32:15

ὅτι ἀποστραφήσεσθε ἀπ’ αὐτοῦ προσθεῖναι ἔτι καταλιπεῖν αὐτὸν ἐν τῇ ἐρήμῳ, καὶ ἀνοεἰς ὅλην τὴν συναγωγὴν ταύτην.

For if you turn away from following Him, He will once again leave this people in the wilderness, and you will be the cause of their destruction.”