Joshua has seen how Yahweh enabled the Israelites to defeat Kings Sihon and Og (these two kings—which Good News Translation makes clear) and occupy their lands; and Yahweh will do the same in all the kingdoms the Israelites will invade in Canaan, west of the Jordan.

All that the LORD your God has done to these two kings may be alternatively expressed as “how the LORD our [inclusive] God has helped us to destroy King Sihon and King Og.”

Quoted with permission from Bratcher, Robert G. and Hatton, Howard A. A Handbook on Deuteronomy. (UBS Helps for Translators). New York: UBS, 2000. For this and other handbooks for translators see here .