Albert Barnes Commentary 1 Peter 3:14

"But even if ye should suffer for righteousness` sake, blessed [are ye:] and fear not their fear, neither be troubled;" — 1 Peter 3:14 (ASV)

But and if ye suffer for righteousness' sake. This implies that though, in general, a holy character would constitute safety, yet there was a possibility that they might suffer persecution. Compare Matthew 5:10.

(See 2 Timothy 3:12.)

Happy are ye. This perhaps alludes to what the Savior says in Matthew 5:10: Blessed are they which are persecuted for righteousness' sake. On the meaning of the word happy or blessed, see Matthew 5:3.

The meaning here is not that they would find positive enjoyment in persecution on account of righteousness, but that they were to regard it as a blessed condition; that is, as a condition that might be favorable to salvation. And they were not, therefore, on the whole, to regard it as an evil.

And be not afraid of their terror—that is, of anything which they can do to cause terror. There is evidently an allusion here to Isaiah 8:12-13: Neither fear ye their fear, nor be afraid. Sanctify the Lord of hosts himself; and let him be your fear, and let him be your dread. (See Isaiah 8:12 and following; Matthew 10:28.)

Neither be troubled—that is, with apprehension of danger. Compare John 14:1.

If we are true Christians, we have really no reason to be alarmed in view of anything that can happen to us. God is our protector, and He is abundantly able to vanquish all our foes, to uphold us in all our trials, to conduct us through the valley of death, and to bring us to heaven. All things are yours; whether Paul, or Apollos, or Cephas, or the world, or life, or death, or things present or things to come, (1 Corinthians 3:21–22).