Numbers 6:7

6:7 He must not defile himself even for his father or his mother or his brother or his sister if they die, because the separation for his God is on his head.

Numbers 22:18

22:18 Balaam replied to the servants of Balak, “Even if Balak would give me his palace full of silver and gold, I could not transgress the commandment of the Lord my God to do less or more.

Numbers 35:23

35:23 or with any stone large enough that a man could die, without seeing him, and throws it at him, and he dies, even though he was not his enemy nor sought his harm,