“But now you also put off all these; anger, wrath, malice, blasphemy, filthy communication out of your mouth. Lie not one to another, seeing that you have put off the old man with his deeds.” Colossians 3:8, 9.

While you so readily think and speak evil of one another, while you allow the root of bitterness to spring up and be cherished, your influence scatters from Christ and hardens hearts in resistance to the sweet spirit of unity and peace. Put it all away without a moment’s delay. “Love one another,” Christ says, “as I have loved you” (John 15:12). –Mind, Character, and Personality, vol. 2, p. 639.

Those who at any supposed provocation feel at liberty to indulge anger or resentment are opening the heart to Satan. Bitterness and animosity must be banished from the soul if we would be in harmony with heaven. …

“His servants ye are to whom ye obey” (Romans 6:16). If we indulge anger, lust, covetousness, hatred, selfishness, or any other sin, we become servants of sin. “No man can serve two masters” (Matthew 6:24). If we serve sin, we cannot serve Christ. The Christian will feel the promptings of sin, for the flesh lusteth against the Spirit; but the Spirit striveth against the flesh, keeping up a constant warfare. Here is where Christ’s help is needed. Human weakness becomes united to divine strength, and faith exclaims, “Thanks be to God, which giveth us the victory through our Lord Jesus Christ” (1 Corinthians 15:57)! –Mind, Character, and Personality, vol. 2, p. 516.