en_tn/1th/03/03.md

no one would be shaken

To be "shaken" is an idiom for being afraid. Alternate translation: "no one would be frightened away from trusting in Christ" (See: rc://en/ta/man/translate/figs-idiom)

we have been appointed

Paul assumes that everyone knows that it was God who appointed them. This can be made explicit. Alternate translation: "God has appointed us" (See: rc://en/ta/man/translate/figs-explicit)