1 Timothy 3:11 - Coke's Commentary on the Holy Bible

Even so must their wives be grave,— There was as much reason that this should extend to the wives of bishops also; and as he begins the next verse with let the deacons, that is to say, as well as the bishops, be the husbands of one wife,—perhaps he might so design it. These wives were not to slander any body, and especially not to blast the characters of the poor to their husbands, and so cut them off from the charitable relief of the church. The deacons themselves are required, 1 Timothy 3:8 not to be sordidly covetous; and here their wives are ordered to be faithful in all things. These orders might be given, partly, to prevent their being tempted, or falling into the temptation of embezzling the public money. See Acts 6:1. &c.