to godliness, brotherly affection; to brotherly affection, unselfish love.

to knowledge, self-control; to self-control, perseverance; to perseverance, godliness;

Since all these things are to melt away in this manner, what sort of people must we be, conducting our lives in holiness and godliness,

I can pray this because his divine power has bestowed on us everything necessary for life and godliness through the rich knowledge of the one who called us by his own glory and excellence.