That’s quite a stretch to the meaning applied to βαπτισμός (baptismos). That word doesn’t solely mean immersion, but washing as well. So, they weren’t literally immersing couches in water, but washing them. I know this user hasn’t been on here in a while, but wanted to address the post even when the poster no longer frequents the forum.
I was going to post.
Luke 12:50 but I have a baptism to be baptized with, and how am I pressed till it may be completed!
In the reality is not the above baptism the baptism that saves us? Is not water baptism just a picture of we being baptized unto the death of Christ showing us to having been made righteous in Christ, with Christ having gone
through the death [baptism]? [a good conscience toward God, through the resurrection of Jesus Christ;]
Consider;
Heb 2:14,15 Seeing, then, the children have partaken of flesh and blood, he himself also in like manner did take part of the same, that
through [the] death he might destroy him having the power of death -- that is, the devil -- and might deliver those, whoever, with fear of death, throughout all their life, were subjects of bondage,