Because God commanded him to kill. Note that the Commandment your are thinking of is actually "You shall not murder." Murder is a legal term meaning killing in a prohibited way or for a prohibited reason.
For answer, see related link "The Sixth Commandment" at bottom of page.
According to the 10th commandment, we should not be jealous of anyone's possessions. Jealously and envy can lead to other sins such as murder and therefore we ought not be jealous of anything that doesn't belong to us.
The order of importance of the Ten Commandments is not explicitly stated in the Bible. However, many religious scholars and theologians believe that the first commandment, which emphasizes the worship of one God, is often considered the most important. Other important commandments include honoring one's parents, not committing murder, and not stealing. Ultimately, the importance of each commandment may vary depending on individual beliefs and interpretations.
According to the Bible, Jesus said the most important commandment is to love God with all your heart, soul, and mind, and to love your neighbor as yourself.
There is: "Thou shalt not kill." According to Christ, this is the same as "Thou shalt do no murder." Matthew 19:18.
A:The first four of the Ten Commandments were written to command obedience to the Jewish religion, and the remaining commandments were concerned with social harmony. The fifth commandment tells us to honour our parents, which is a commandment about family relations. This was deemed so important that the Bible says that if a son strikes his father, he must be killed.
You shall not steal and you shall not bare false witness (lie)
the ten commandment are so important because they will get you to a better place and that is with the Lord as an angel forever
The fourth commandment!
The Torah teaches us that they were the first commandments given to the People from God.
John 15:12 This is my commandment, That ye love one another, as I have loved you.