Why do God's instructions to Israel under the law differ from what He says to us under grace?
The apparent differences are not contradictions but reflect a change in God's program or operation. Scripture addresses Israel under the law differently than it addresses us under grace. This distinction in divine dealing explains why instructions differ, as it is simply a change of operandi.
Les teaches that seeming contradictions in Scripture are not actual errors; they are simply a difference in program. What the Bible says to the nation of Israel under the law is naturally going to be different from what God says to us under grace. That is not contradiction but a change of operandi. He illustrates this by comparing the Bible to a fine-tuned machine that runs smoothly when understood rightly, and he rejects the charge that it is full of contradictions.