en_tn_condensed/tit/01/06.md

An elder must be blameless, the husband

"An elder must not have a bad reputation and must be the husband"

the husband of one wife

This means that he has only one wife, that is, he does not have any other wives or concubines. It may also imply that he does not commit adultery and that he has not divorced a previous wife. Alternate translation: "a man who has only one woman" or "a man who is faithful to his wife"

faithful children

Possible meanings are 1) children who believe in Jesus or 2) children who are trustworthy.