No. But I believe it was.
Do you believe in slavery?
The existence of slavery? Sure.
Or is it that "God said so" isn't good enough for you?
God commanded slavery?
Seriously. I'm well aware that there are OT verses that I don't think "fit" without excessive "interpretation" (I'm shocked that an old guy like you didn't jump right to the she-bears). But were any of them the covenany sign of God's family?
Or do you take anythign in Scripture that you disagree with and make it symbolic (like the Eucharist)?
I freely admit I know nothing. Do you?