The book of Ruth.
Requirements for immigration.
Redemption for Lot, Ruth and Naomi.
Grandmother of King David.
(
Correction: One of my listeners pointed out that I incorrectly indentified Orpah. My apologies. Orpah was sister-in-law to Ruth:
"And they took for themselves Moabite women as wives; the name of the one was Orpah, and the name of the other, Ruth. And they lived there about ten years." Ruth 1:4)