For what it is worth: In the Old testament, it was the letter of the law that was enforced, At that time the Sanctifying Spirit, the Holy Spirit was not given, it was lost by Adam and Eve. It was through Jesus that the Holy Spirit was merited for us. With the coming of Jesus, it was the spirit of the law that was emphasized. Jesus brought out this truth in His criticism of the Pharisees calling them hypocrites following the letter of the law, but not the spirit. When the Israelites complained that they had no food while crossing the desert, God gave them manna from Heaven, but He also sent a plague of serpents to bite them, then He had Moses raised a brass or gold serpent (representing Jesus) and all who gazed on the serpent were healed. Discipline was apparently severe because it probably was needed at that time, God often referred to them, even in the New Testament, as a “stiff neck people” God loved His people then and now, but He deals with them and us with loving discipline , measured out in a just, and loving way, even if it is not understood. Even in our day we see God allowing tyrants to kill the innocent. God views are different then ours, His has to do with a “real eternity”, a real destiny for mankind, not just a temporal one. We judge as humans, not as God.