Their wives in the same way must be reverent, not slanderers, temperate, faithful in all things.
But isn't Phoebe called a deaconess  (Romans 16:1)?  Yes, indeed; but policemen are also called deacons of God  (Romans 13:4), the Greek word being the same in both cases (except for the gender).  See exegesis on this in my Commentary on Romans under those verses.  In this connection, it is proper to note that if Paul had meant these women to be installed as "deaconesses" he certainly knew the word and would have referred to them in this passage by their proper title.  The New Testament word "apostle" is used in its both official and limited sense and also in a secondary and more general sense when applied to men like Barnabas and Silas, who were not, strictly speaking, "apostles."  The view here is that "deaconess" as applied to Phoebe, in the same manner, does not mean that she was officially a deacon in the church of the Lord.  It should always be remembered that deaconess translates the Greek word for "servant," and that, for centuries, the translators have rendered the word "deacon" only when the official church office was meant.  But in the case of  Romans 13:4 and  Romans 16:1, they usually rendered it "servant."  That is the way the KJV renders both places; and the gratuitous injection of the official title DEACON into  Romans 16:1 in some subsequent versions is absolutely incorrect and misleading.