If Peter was familiar with a particular saying from the prophet Amos he may have uttered something supremely profound when he wrote the following.

“Be of sober spirit, be on the alert. Your adversary, the devil, prowls around like a roaring lion, seeking someone to devour.”

1 Peter 5:8, NASB

What did Amos say?

“Does a lion roar in the forest when he has no prey? Does a young lion growl from his den unless he has captured something?”

Amos 3:4, NASB

Peter’s view of the devil’s success

A roaring lion has prey and is therefore not hunting, so what is the significance of Peter’s roaring lion seeking prey?  Two scenarios are likely. First, an insatiable appetite.  Following the idea in Habakkuk 2:5, we see the lion with a large appetite or a large family to feed, “like Sheol, and he is like death, never satisfied. He also gathers to himself all nations and collects to himself all peoples”.  The second is that the roar is anticipatory; the devil knows that prey is assured.  Peter knows it too.  He narrowly escaped the jaws of the hunter

Simon, Simon, behold, Satan has demanded permission to sift you like wheat; but I have prayed for you, that your faith may not fail; and you, when once you have turned again, strengthen your brothers.

Luke 22:31-32, NASB

You’ve escaped the hunter

No panic is necessary, just keep your faith anchored in its Pioneer. People may say your faith is hindered by sin or your faith is small or weak. These people are being manipulated by evil desires. A little faith, microscopic faith, moves mountains. Your faith has overcome the world and brought you to eternal life and assurance of glory.