Matt 19:8 Jesus replied, "Moses permitted you to divorce your wives because your hearts were hard. But it was not this way from the beginning."
War is a clash of wills. If you understood Deuteronomy, you would understand that Moses's goal is to purify the land his enemies. Thou shalt not kill does not refer to self defense. Moses saw it at self defense. The rule did not apply for thoes outside of Israel, unless they were particularly stubborn and insistant attackers.
Moses gave the rule, not God. Moses also led them to where he thought the promised land was. God gave the gift of Life and the Earth to all men. He did not parcel out this land for the Israelites. That was Moses job to do. They were to become a nation and have their own land. Have you not heard, Genesis 3:17-19
"To Adam he said, "Because you listened to your wife and ate from the tree about which I commanded you, 'You must not eat of it,'
"Cursed is the ground because of you;
through painful toil you will eat of it
all the days of your life.
It will produce thorns and thistles for you,
and you will eat the plants of the field.
By the sweat of your brow
you will eat your food
until you return to the ground,
since from it you were taken;
for dust you are
and to dust you will return."
The Holy Spirit was their spiritual and moral guide, but not their general.
The Jews had Sat. and Christians have Sun. They both have their reasons for choosing particular days. In the end it's not what day that counts, it's the activities of the day that matter. The activities that are important are prayer, family and rest. Failing to set aside that day would be breaking the commandment.
You may rationalize these things any way you like, and believe them too. But, for the rest of us, "thou shalt save alive nothing that breatheth ... as the LORD thy God hath commanded thee," cannot possibly be stretched to mean "self defense." What threat, exactly, were babies and animals?
Believe what you want to believe, that is what freedom of religion is. But do not expect others to be convinced the ten commandments are worth much if those who claim to revere them do not mind changing the meaning whenever they feel like it. We just don't believe you, and the more you protest, the more we are convinced its all a big sham.
Hank