So at that time, the Lord said to Joshua: "Make for yourself knives of stone, and circumcise the sons of Israel a second time.
Other versions
King James Version
At that time the LORD said unto Joshua, Make thee sharp knives, and circumcise again the children of Israel the second time. English Standard Version
At that time the LORD said to Joshua, "Make flint knives and circumcise the sons of Israel a second time."New International Version
At that time the LORD said to Joshua, "Make flint knives and circumcise the Israelites again."