This is what happens when the Doctrine of Biblical Inerrancy and Infallablity becomes more important than the Lordship of Jesus Christ. The Bible is used to justify attitudes that are incompatable with God's revelation of Himself in Christ. Jesus clearly asserts His superiority over the Law of Moses and all scripture when he says,"You have heard it said ane eye for eye (Exodus)but I say..."
The supreme importance of the Bible is that it gives us the story of God's journey through history as told by the Hebrew people with whom He made that journey, culminating in the life, and death of Jesus, then beginning anew with His resurrection. The Bible is not the journey. The Bible is not the revelation. It is a faithful witness to the journey. It gives us a sufficient, but not perfect account. We know when the people of Isreal were properly understanding what God was doing, and we know when they did not, because we have Jesus as the definitive revelation by which all scripture is to be properly interpreted.
The historical fact is the Hebrews committed genocide on occasions. The particualr writers of the passages that deal with those accounts tell us it was their belief that God wanted them to slaughter the entire population of cities, including children. Because of Jesus I think they were attributing to God something he might not wanted to have been given credit for.
That is precisely why the Bible is sufficient only when studied in its entirety, and can lead us to doctrines and attitudes, even actions, that are contrary to God's will, if we do not. Without Jesus, the Bible is just another collection of Ancient Religious writings. With Jesus, it becomes our Scriptures. But those scriptures cannot be properly understood without Jesus, for He is the Word who lives and continues to work in the world, and I challenge any of you to say with any conviction, that Jesus would command any modern King, President, General, or whoever, to commit genocide today in order to punish iniquity. It is the radical Muslims who see God that way, not the disciples of the Lord Jesus Christ, who is the same yesterday, today, and forever. If you do believe that he would, you are not, in my opinion, anywhere close to Jesus.