Many people say that women can be deacons but not elders. There is clear scriptural precedent for women as deacons. For example, in Romans 16:1 the word used to describe Phoebe is diakonon (sometimes translated servant).
One of the arguments used to say that women cannot be elders is that the qualifications for being an elder includes being the husband of one wife (1 Timothy 3:1). A woman cannot have a wife–therefore she cannot be an elder.
However, one of the qualifications for deacons is that they, too, are to be the husband of one wife (1 Timothy 3:12).
Follow the logic. Deacons have to be the husband of one wife, and we know that there are female deacons. Elders also have to the be the husband of one wife. Why should there not be female elders too?
First Timothy 3:11 says, “let the wives (women) also be temperate… faithful.” This verse is often applied to female deacons. Why not to female elders too.
(Thank you to Neil Cole for this idea)