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

if only to teach warfare to the subsequent generations of Israel, especially to those who had not known it formerly:

(only for the sake of the generations of the sons of Israel's knowing, to teach them war, only those who formerly have not known them) --

only that the generations of the children of Israel might know war by learning it, at the least those who before had known nothing thereof: