Acts 21:9

"Now this man had four virgin daughters who were prophetesses" These daughters were morally pure, unmarried (at this time) and they had the spiritual gift of prophecy. Spiritual gifts were given to women (Acts 2:17), and such gifts were used outside the assembly (1 Corinthians 14:34), especially when teaching other women (Titus 2:3 ff), and children. The fact that these women spoke by inspiration does not mean that they were preachers (see 1 Timothy 2:12). "How are we to harmonize the passages which forbid women prophesying, with those which indicate they were indeed prophesying? May we say that the Holy Spirit led women to do in one place what He forbade them to do in another? Or is there an underlying theme running all through these passages that allows us to harmonize them? Women are not to assume. teaching position in the church that would usurp the divine order of authority. God, Christ, man, woman (1 Corinthians 11:1 ff). It is perfectly possible that Philip's daughters confined their ministrations to those of their own sex; especially would they be able to speak and teach in private among the women of both Jewish and Gentile backgrounds" (Reese p. 786).