I prefer
Rachel and
Emily from your lists, but
Emily has been too popular and
Rachel seems over the hill. Certainly stay with your biblical theme: I suggest
Talitha (not
Tabitha!) for its distinctive, stylish look and sound, and because it was adopted as a kind of slogan by Victorian feminists! When
Jesus restored a girl to life, he said in Aramaic '
Talitha, cumi' (Little girl, get up), and this became the name of many girls' schools, women's clubs and societies etc as well as a personal name.
If you prefer two syllables, what about
Dinah? Beautiful, and more interesting than
Diana.
Amy or
Clare (or
Amie or
Claire, but I prefer the other versions) would make a good middle name.