ALL: Rad_J cannot prove Moses was married to the any two of his wives simultaneously. It's an argument from silence.
We simply don't know when his earlier wife died. There's no Biblical record of her death...some surmise she died around the time of Numbers 10...but even that is also conjecture built upon silence.
To say that the Bible is silent on the subject of Moses being married to Zapporah and an Ethiopian woman at the same time is you willfully ignoring context.
Moses mentions Sarai’s death and mention his sister’s death but doesn’t mention his own wife’s death. It is therefore more likely that she hasn’t died yet when Moses wrote the 5 books.
Moses’ father in law was just mentioned in numbers 10:29.
Then just over a chapter later it says Moses married an Ethiopian woman and Miriam and Aaron are upset about it. It was a big enough family fight that God cursed Miriam with lepercy. Why were Miriam and Aaron against Moses getting married to an Ethiopian? Maybe because she was black or maybe because it was a polygamous marriage. Maybe they were upset for both reasons.
It is a fact that Moses married a 2nd woman with no evidence that his first wife died or that they were divorced but very close to the time when her father was still Moses’s father by law.
It is a fact that Jacob, grandson of Abraham and a Prophet of God, had 4 wives. Leah and Rachel, who were SISTERS, and their two handmaids Zilpah and Bilhah.
The house of Israel, the 12 tribes of Israel, God’s chosen people, were started by a Prophet of God who was a polygamist.
This polygamist family is the foundation of Christianity and the Jewish religion.