This can be stated in active form. Alternate translation: "do your best to live in a way so that God will find you spotless and blameless, and be at peace with him and each other" (See: [[rc://en/ta/man/translate/figs-activepassive]])
The words "spotless" and "blameless" mean basically the same thing and emphasize moral purity. Alternate translation: "completely pure" (See: [[rc://en/ta/man/translate/figs-doublet]])