en_tn/2pe/01/10.md

make your calling and election sure

The words "calling" and "election" share similar meanings and refer to God's choosing people to belong to him. Alternate translation: "make sure that God has really chosen you to belong to him" (See: rc://en/ta/man/jit/figs-doublet)

you will not stumble

Here the word "stumble" refers either to 1) committing sin. Alternate translation: "you will not practice sinful behavior" or 2) becoming unfaithful to Christ. Alternate translation: "you will not become unfaithful to Christ" (See: rc://en/ta/man/jit/figs-metaphor)