When Paul said h le was showing us a mystery, he was speaking of the Body of Christ, age of grace and the rapture of the Body when that age ends.

This isn't even debatable. Satan has used religion to confuse the heck out of mankind and to make the Bible seem pious and indecipherable.

The age of grace is nearly at the end. In this dispensation, a person simply has to place their faith in Christ for salvation and they are saved. Paul gave this gospel of salvation to the world. Our works are nothing. Only faith in Jesus saves. It is great to be kind and charitable and loving, but that won't save you. Any faith in any work or behavior leads to pride, period. This is why God requires nothing but faith in Christ during the age of grace.

The body of Christ is not meant for God's wrath, per the Bible. The rapture, ie snatching away of the Body of Christ, will occur very soon. IMO, within the next few months.

Place your faith in Christ and be saved.