only that the generations of the children of Israel might know, to teach them war, at the least such as beforetime knew nothing thereof:

Only because of the generations of the children of Israel, for the purpose of teaching them war--only those who up till then had no experience of it;

τουλαχιστον δια να μαθωσιν αι γενεαι των υιων Ισραηλ να γυμνασθωσι τον πολεμον, τουλαχιστον οσοι προτερον δεν ειχον γνωρισει αυτους·

Only that the generations of the children of Israel might know, to teach them war, at the least such as before knew nothing thereof;