His divine power has given us everything we need for a godly life through our knowledge of him who called us by his own glory and goodness. Through these he has given us his very great and precious promises, so that through them you may participate in the divine nature, having escaped the corruption in the world caused by evil desires.
For this very reason, make every effort to add to your faith goodness; and to goodness, knowledge; and to knowledge, self-control; and to self-control, perseverance; and to perseverance, godliness; and to godliness, mutual affection; and to mutual affection, love. For if you possess these qualities in increasing measure, they will keep you from being ineffective and unproductive in your knowledge of our Lord Jesus Christ.
Human resolve gets bad press in Christian circles for good reason. We can’t do it on our own, period. The end. We either come up with something which is more or less a coping mechanism, or we might enter into a false sense of security and well being which won’t hold up in the long haul, or we might just cave in and give up. One thing I want to add here: If we have mental health issues, that is no shame whatsoever. There is much needed wisdom from God within psychology, as well as medical help if needed.
We see in 2 Peter here, that Peter (I say) helps us see that from the grace of God in Christ, we humans can resolve and do better on any given issue. We should never think it will just be a snap of our fingers, and we’ll be relieved overnight. No, we need to think of it more as a long term work project, so that our commitment is beyond the moment or time we make it. But that this commitment, indeed resolve, as we call it, resolution is actually indeed necessary, and through God’s grace in what God gives us for life and godliness, is necessary for us help to make actual progress against whatever our struggle is. For me over the years, I think my prevailing issue has been anxiety. Whatever it is, God can and wants to help us. But we must take the bull by the horns and take hold of such help. Take what God gives us, and make the needed effort.
God’s grace given to us doesn’t mean we’re passive. We have to say enough is enough. But remember too, that whatever progress we make, while our effort is required comes only through the grace, meaning the gift and help God gives us. Through everything, whatever we’re facing each day. God will not only see us through, but help us to do better, grow, and ultimately to see substantial improvement, maybe even making that problem more or less a thing of the past. But this basic is ongoing in our lives, since we never arrive to perfection in this life. Given to us in and through Jesus.