en_tn/2pe/01/03.md

General Information:

Peter begins to teach the believers about living godly lives.

for life and godliness

Here "godliness" describes the word "life." Alternate translation: "for a godly life" (See: rc://en/ta/man/jit/figs-hendiadys)

through the knowledge of him who called us

You may need to make specific that it is Peter and his readers who know God. Alternate translation: "through our knowledge of God, who called us" or "because we know God, who has called us"

who called us

Here the word "us" refers to Peter and his audience. (See: rc://en/ta/man/jit/figs-exclusive)

through his own glory and excellence

Possible meanings are 1) "by showing us his own glory and greatness" or 2) "to share his own glory and excellence."