The rest of the gang comes by the room to see Rachel and the baby, and they ask what her name is. Ross introduces her as Isabella, which makes Rachel cry, and says, "that's not her name." He then says their backup name, Delilah, which leaves Rachel in disgust and says the name sounds like a biblical whore.
The rest of the gang arrives at the room to meet Rachel and her baby, and they inquire about her name. Ross introduces her as Isabella, which causes Rachel to become upset, and he then states their secondary name, Delilah, which leaves Rachel appalled and remarks that the name sounds like a biblical prostitute.