What does God require in the sixth Commandment?

Heidelberg Catechism

~Sixth Commandment

Question 105. What does God require in the sixth Commandment?

Answer. That I do not revile, hate, insult, or kill my neighbor either in thought, word, or gesture, much less in deed, whether by myself or by another,[1] but lay aside all desire of revenge;[2] moreover, that I do not harm myself, nor willfully run into any danger.[3] Wherefore also to restrain murder the magistrate is armed with the sword.[4]

[1] Gen 9:6; Lev 19:17-18; Mt 5:21-22, 26:52;
[2] Prov 25:21-22; Mt 5:25, 18:35; Rom 1:19, 12:19; Eph 4:26;
[3] Mt 4:7, 26:52; Rom 13:11-14; Col 2:23;
[4] Gen 9:6; Ex 21:14; Mt 18:6-7; Rom 13:4