en_tn/1ti/03/06.md

He should not be a new convert

"he should not be a new believer" or "he should not be someone who became a believer a short time ago" or "he must be a mature believer"

and fall into condemnation like the devil

and fall into condemnation like the devil - “become proud like the devil did and because of that be condemned as the devil was"

He must also have a good reputation with those outside

"It is necessary that those who do not believe in Jesus think well of him" or "Those outside of the church must also think well of him" (UDB)

fall into disgrace

"bring shame upon himself" or "give anyone reason to disapprove of him” (See: rc://en/tw/dict/bible/other/reproach)

fall into ... the trap of the devil

"allow the devil to trap him." Satan setting a trap or snare is a metaphor for Satan tricking a believer into unknowingly committing sin. (See: rc://en/ta/man/translate/figs-metaphor)