Which of these are you obeying is obvious. I always believed God's word doesn't change
So how did it go from 'Thou Shall Not kill...to Kill... in a few strokes of a pen?
Jeremiah 8:8 tells us how
“How can you say, ‘We are wise, and the law of the LORD is with us’? But behold, the lying pen of the scribes has made it into a lie."