If an older brother goes to their father about a sibling that's not doing too well & this elder brother's looking a bit green about 'em, does this mean that we give up the younger brother for adoption that's not doing too well in the household? Lord Jesus's spitting ministry brought healing in the Gospels; REMOVAL OF BLINDNESS OR A CURE TO THE MUTE, under the Law, but we expect it to bring damnation under grace? Some translations have the word "vomit" instead in Revelation, but later in Revelation the only thing forcefully coming out of His mouth is the Sword of the Word of God. A prophet spitting you out, sorta, would involve your name & specifics being brought up, wouldn't it?
Then why would our Lord Jesus going to the Father looking a little green during His intercessions imply a brother or sister in Christ is about to fall off of a cliff into an eternal volcano? John could have simply been saying they'd be called out by name in public rebuke, since Lord Jesus taught doing that sometimes. But for some reason, preachers have looked for an additional Scripture to throw an additional brother or sister away for whom Christ died when Revelation 3 mentions discipline and repentance, gold (perhaps faith) brought from the fire and the possibility of soothing garments for the cold. The passage mentions eye salve, which could easily be referring to Jesus's spitting ministry again, from the Gospels, for those who believe that's the way to translate that.