The New Covenant and the scriptures in Torah are very clear that murder comes as an act of anger that leads to taking the life of another.
Num 35:16 "'If a man strikes someone with an iron object so that he dies, he is a murderer; the murderer shall be put to death. 17 Or if anyone has a stone in his hand that could kill, and he strikes someone so that he dies, he is a murderer; the murderer shall be put to death. 18 Or if anyone has a wooden object in his hand that could kill, and he hits someone so that he dies, he is a murderer; the murderer shall be put to death. 19 The avenger of blood shall put the murderer to death; when he meets him, he shall put him to death. 20 If anyone with malice aforethought shoves another or throws something at him intentionally so that he dies 21 or if in hostility he hits him with his fist so that he dies, that person shall be put to death; he is a murderer. The avenger of blood shall put the murderer to death when he meets him.
22 "'But if without hostility someone suddenly shoves another or throws something at him unintentionally 23 or, without seeing him, drops a stone on him that could kill him, and he dies, then since he was not his enemy and he did not intend to harm him, 24 the assembly must judge between him and the avenger of blood according to these regulations.
Deut 19:11 But if a man hates his neighbor and lies in wait for him, assaults and kills him, and then flees to one of these cities, 12 the elders of his town shall send for him, bring him back from the city, and hand him over to the avenger of blood to die. 13 Show him no pity. You must purge from Israel the guilt of shedding innocent blood, so that it may go well with you.
Murder is about hate
Matt 5:21 "You have heard that it was said to the people long ago, 'Do not murder, and anyone who murders will be subject to judgment.' 22 But I tell you that anyone who is angry with his brother will be subject to judgment.
1 John 3:11 This is the message you heard from the beginning: We should love one another. 12 Do not be like Cain, who belonged to the evil one and murdered his brother. And why did he murder him? Because his own actions were evil and his brother's were righteous. 13 Do not be surprised, my brothers, if the world hates you. 14 We know that we have passed from death to life, because we love our brothers. Anyone who does not love remains in death. 15 Anyone who hates his brother is a murderer, and you know that no murderer has eternal life in him.
Rom 13:8 Let no debt remain outstanding, except the continuing debt to love one another, for he who loves his fellowman has fulfilled the law. 9 The commandments, "Do not commit adultery," "Do not murder," "Do not steal," "Do not covet," and whatever other commandment there may be, are summed up in this one rule: "Love your neighbor as yourself." 10 Love does no harm to its neighbor. Therefore love is the fulfillment of the law.
James 1:20 …for man's anger does not bring about the righteous life that God desires.
Abortion, Military service, or Suicide
If murder is about hate and anger, then why do we hear it taught in some church’s that Abortion, Military service or Suicide is in the category of murder? It’s very easy to have strong opinions about these sensitive topics, and it’s very easy to use scripture based on a person’s personal interpretation. But scripture is clear what defines murder and what doesn't.
This is not about condoning or justifying any of those actions. It’s about not allowing our personal feelings to go beyond Gods word. He is the righteous judge.
Deut 4:2 Do not add to what I command you and do not subtract from it,
but keep the commands of the Lord your God that I give you.