[Gondring]

And I ask where it defines what she does as a sin. How is "sexual immorality" defined?

If the Bible does not define her work as a sin, then wrongly accusing her of being apostate is sinful, and those who criticize her should be shunned from Christian fellowship.

How about #7 above.... "If you knowingly, habitually commit sin...you have no business calling yourself a Christian. " Isn't saying someone is not a Christian mean that person is condemned, or do you go by the idea that there's a way to be saved other than through Him? Sounds to me like there is condemning going on, or else wishful condemning.

[MHGinTN]

"Isn't saying someone is not a Christian mean that person is condemned, or do you go by the idea that there's a way to be saved other than through Him?" Being without Christ is to be condemned by your own tresspasses and sins, for eternal fellowship with a Holy God requires the one fellowshipping to be holy else God doesn't remain Holy. The condemnation is self-derived, not issued by those in Christ. See, it is hard for you to hear this, isn't it.

"... do you go by the idea that there's a way to be saved other than through Him?" The Almighty accomplished something in Christ that is unique, and 'no man cometh unto the Father but by Him', for He is the Way, the Truth, and the Light, the doorway into fellowship with the Creator of the Universe. If any other means in were possible, His death on the cross would be but vane glory, an addendum.

Which leads to the answer to your other query: 'where does it say the Cross works forward in time and backward in time?' The Bible states that none come to the Father but by Christ and Him crucified. Since we are told the patriarchs will be in Heaven also (and they lived before Jesus's day), what else meaning would you derive except the Cross reaches forward and backward in time?