Galatians 5:15 (King James Version)
¹⁵But if ye bite and devour one another, take heed that ye be not consumed one of another.

Romans 1:18
¹⁸For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who hold the truth in unrighteousness;

Revelation 6:4
⁴And there went out another horse that was red: and power was given to him that sat thereon to take peace from the earth, and that they should kill one another: and there was given unto him a great sword.

Matthew 24:3,6,7,10-12
³And as he sat upon the mount of Olives, the disciples came unto him privately, saying, Tell us, when shall these things be? and what shall be the sign of thy coming, and of the end of the world?

⁶And ye shall hear of wars and rumours of wars: see that ye be not troubled: for all these things must come to pass, but the end is not yet. 
⁷For nation shall rise against nation, and kingdom against kingdom: and there shall be famines, and pestilences, and earthquakes, in divers places.

¹⁰And then shall many be offended, and shall betray one another, and shall hate one another. 
¹¹And many false prophets shall rise, and shall deceive many. 
¹²And because iniquity shall abound, the love of many shall wax cold.

Galatians 5:25-26
²⁵If we live in the Spirit, let us also walk in the Spirit. 
²⁶Let us not be desirous of vain glory, provoking one another, envying one another.

Colossians 3:9-10
⁹Lie not one to another, seeing that ye have put off the old man with his deeds; 
¹⁰And have put on the new man, which is renewed in knowledge after the image of him that created him:

1 Thessalonians 5:15
¹⁵See that none render evil for evil unto any man; but ever follow that which is good, both among yourselves, and to all men.