sentence1: only that the generations of the children of Israel might know, to teach them war, at least those who knew nothing of it before:
sentence2: Πλὴν διὰ τὰς γενεὰς υἱῶν Ἰσραὴλ τοῦ διδάξαι αὐτοὺς πόλεμον, πλὴν οἱ ἔμπροσθεν αὐτῶν οὐκ ἔγνωσαν αὐτά.