Our soul departed from or divorced our first husband when we were justified. We had to remain unmarried or be reconciled to our old worldly nature so long as he lived. And Justification is as far as most go who claim to be Christians, or Christ's bride. They remain unmarried, answerable for their spiritual needs, and responsible for their own actions. They keep on repenting, but never come into oneness and under headship to the Word.
Multitudes go back into the world and are lost.
They can still be lost. But we can't marry Christ whilst our former husband is living. We can't just put him away and take another. He must be dead. Christians are accounted as having been crucified in Christ on Calvary.