Matthew Henry Commentary 1 Peter 3:8-13

"Finally, [be] ye all likeminded, compassionate, loving as brethren, tenderhearted, humbleminded: not rendering evil for evil, or reviling for reviling; but contrariwise blessing; for hereunto were ye called, that ye should inherit a blessing. For, He that would love life, And see good days, Let him refrain his tongue from evil, And his lips that they speak no guile: And let him turn away from evil, and do good; Let him seek peace, and pursue it. For the eyes of the Lord are upon the righteous, And his ears unto their supplication: But the face of the Lord is upon them that do evil. And who is he that will harm you, if ye be zealous of that which is good?" — 1 Peter 3:8-13 (ASV)

Although Christians cannot always be of the exact same mind, they should still have compassion for one another and love as brothers and sisters. If anyone desires to live comfortably on earth, or to possess eternal life in heaven, they must bridle their tongue from wicked, abusive, or deceitful words. They must forsake and keep away from evil actions, do all the good they can, and seek peace with everyone. For God, all-wise and everywhere present, watches over the righteous and takes care of them. No one could or should harm those who follow the example of Christ—who is perfect goodness and did good to others—for they are His followers.