The new testament gives advice to slaves on how they should behave because slavery was an accepted custom. It doesn't mean that the Bible advocates slavery. The custom of the time saw women as second class citizens and the advice given concerning them does not mean that the Bible advocates treating women as second hand citizens. If a woman gets in front of a congregation and starts spewing out truths concerning the gospel and is filled with love for her brothers and sisters in Christ, how can anyone argue with what she has done? The first will be last and the last will be first when there is a tie and that means that everyone is treated equally. The apostles and those who have died for their faith deservedly will have a higher station in the kingdom of heaven. Women just like men will be judged the same way. We need to repent, trust in Jesus' death for the forgiveness of sins, and be filled with the Holy Spirit which fills our hearts with love.
Galatians 3:26-29KJV
26 For ye are all the children of God by faith in Christ Jesus.
27 For as many of you as have been baptized into Christ have put on Christ.
28 There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus.
29 And if ye be Christ's, then are ye Abraham's seed, and heirs according to the promise.