I am afraid you do not understand the distinction between the Old and New Testaments and between the gentile and Jew. No where in the New Testament is murder condoned, in fact, even hating your brother secretly in your heart is like murder and is condemned.
Jesus fulfilled the Law by His perfect sacrifice and because of this sacrifice we do not follow all the same commandments as were given to the Jews.
see Jesus words here:
Matthew 22:36-40
New International Version (NIV)
36 “Teacher, which is the greatest commandment in the Law?”
37 Jesus replied: “‘Love the Lord your God with all your heart and with all your soul and with all your mind.’[a] 38 This is the first and greatest commandment. 39 And the second is like it: ‘Love your neighbor as yourself.’ 40 All the Law and the Prophets hang on these two commandments.”
So according to you, when Jesus denounced the OT, and he had no reference to worshiping the Bible, nor telling you to ignore your intelligence, at a time when it would be most relevant. And from there you just use the Bible to play connect the dots about the rest of your Christian faith?