9 not rendering evil for evil, or railing for railing; but on the contrary, blessing [others], because ye have been called to this, that ye should inherit blessing. 10 For he that will love life and see good days, let him cause his tongue to cease from evil and his lips that they speak no guile. 11 And let him avoid evil, and do good; let him seek peace and pursue it; 12 because [the] eyes of [the] Lord [are] on [the] righteous, and his ears towards their supplications; but [the] face of [the] Lord [is] against them that do evil.
Matthew Henry's Commentary on 1 Peter 3:9-12
Commentary on 1 Peter 3:8-13
(Read 1 Peter 3:8-13)
Though Christians cannot always be exactly of the same mind, yet they should have compassion one of another, and love as brethren. If any man desires to live comfortably on earth, or to possess eternal life in heaven, he must bridle his tongue from wicked, abusive, or deceitful words. He must forsake and keep far from evil actions, do all the good he can, and seek peace with all men. For God, all-wise and every where present, watches over the righteous, and takes care of them. None could or should harm those who copied the example of Christ, who is perfect goodness, and did good to others as his followers.