Faith is like a limpet: the harder you try to pull it off the stronger it sticks.

That's the point of Peter's letters to the persecuted church. The strength of one's faith, like a limpet, actually gains strength in times of trouble. Ridicule directed at believers should wrench it free; instead, it merely makes it stick stronger to the Rock on which it sits.

Limpets look like easy pickings. One just pulls it off a rock. The trouble is that limpets have teeth and those teeth are the strongest natural material:

Their tiny, millimeter-long teeth are now the record holders for the world's strongest natural material, according to findings published in the Journal of the Royal Society Interface this week.
And that is the same with a believer's faith. The more you try and pull it off its rock the stronger the teeth will grip. And those teeth are God-powered, the strongest things in the world.

We believers are:

protected by the power of God through faith [Rock-sticking teeth] for a salvation ready to be revealed in the last time (1 Peter 1:5).