Exactly, that is what I am trying to tell you, that these people that Paul is telling them to confess, and believe, are regenerated. The word that is tripping you up is "saved", in verse 9, which means "delivered" and "salvation" in verse 10, means "deliverance".
When a newly regenerated babe in Christ comes unto a knowledge of the gospel, they are delivered, not eternally, but from their lack of knowledge of the gospel. That is why Jesus instructed his apostles to go and preach the gospel to the lost regenerated sheep of the house of Jacob/Israel, and not to the goats, which are the unregenerate.
You will always have contradicting scriptures until you understand that, according to Strong's, save, saved, and salvation, means deliver, delivered, deliverance. There is an eternal deliverance, and there are many deliverances we enjoy, as we sojourn here in this world, by repenting, and following God's commandments. The bible reveals to God's elect how that they were delivered eternally, but the main purpose of the inspired words of God is to instruct his elect how he wants them to live their lives as they sojourn here in this world.