The definition of to murder and to Kill?
In the Old Testament we have the same word translated from the Hebrew to English of kill and murder Strongs H7523 Ratzakh (Ratsach), but the context is not the same as some just allow and this is because to kill someone could be an accident or one who is a soldier is employed in war to do so. Exodus 20:13.
To murder implies intent, the legal term being Malice after thought and thus we are in sin with God for doing this. Cain is the example of getting jealous of his brother Able and allowing sin to master him and commit the first murder.
The word used here in Strongs H6865 Qum (Koom) Genesis 4:7-8.
In the New Testament we are warned that there will be no murderers in Heaven. Strongs G5406 Phoneus. Revelation 22:15.
It is important to understand these areas in the light of the ongoing situation in Israel from the 7th October to the present, that there must be a definition between terrorism and the actions of the army of a democratic nation and the right to defend the people!