What does 2 Peter 1:8 mean?
It's important to remember that Peter is writing to Christians here. A challenging idea jumps out from this verse and the one that follows: It is possible for a Christian to be fully equipped for a meaningful life of Christlike goodness, and yet to squander that opportunity. It is possible, instead, to choose to be ineffective and unproductive with that precious gift.This is a sobering thought. This would be something like realizing you've had a superpower all along, and have been wasting it. It would be disastrous to leave that ability unused, pursuing lesser things because they were easier or more immediately attractive. How can a Christian avoid that? Peter says that seeking the qualities he listed in the previous verses, and to have them growing in us, is the way to be effective and productive as people who know the Lord.
Prior verses have shown, though, that this isn't just going to happen to us while we're sleeping, or not paying attention. Peter has commanded us to go to work, to "make every effort," to add these qualities alongside the faith we possess.