I have. In fact, I could debate folks all day long on this topic.
I find some of the posts here ironic since Universalism and reincarnation are often in agreement with each other, and Universalism is allowed to be discussed here.
Maybe a Moderator can chime in.
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And as it is appointed for men to die once, but after this the judgment," Hebrews 9:27
We get many opportunities in our life, one life that we are given, to reconcile with God. He has ordained a time and place for our divine appointment and with many, it just won't happen and they will reamin lost and then suffer death. Do you know what death is? Jesus died so that we can live. If we believe in Him we will never die. Our physical bodies will die and our spirits will go directly to be with Him. The unbeliever suffers death. He goes to Hades, is already judged and awaits his finally destruction in the Lake of Fire.
So our one life is about a journey towards the realization of that moment, a divine appointment, when we believe and are saved from the wages of sin, DEATH.
In Luke 16:19-31, the Rich man will explain it to you in more detail.
ONE LIFE, ONE DEATH AND THEN THE JUDGMENT.
And btw, the Universalists have it wrong. If everyone was saved, a myriad of scriptures about sin, death and judgment would not have been part of the Bible.