Matthew 10:17
But beware of men; for they will deliver you up to appear before Sanhedrins, and will flog you in their synagogues;
Matthew 10:21
Brother will betray brother to death, and father, child; and children will rise against their own parents and will put them to death.
Matthew 10:34-35
"Do not suppose that I came to bring peace to the earth: I did not come to bring peace but a sword.
Luke 21:16
You will be betrayed even by parents, brothers, relatives, friends; and some of you they will put to death.
1 Thessalonians 4:6
and that in this matter there be no encroaching on the rights of a brother Christian and no overreaching him. For the Lord is an avenger in all such cases, as we have already taught you and solemnly warned you.
1 Peter 2:1-2
Rid yourselves therefore of all ill-will and all deceitfulness, of insincerity and envy, and of all evil speaking.