4 which took them wives of the nations of the Moabites: the one's name Orpah and the other's Ruth. And when they had dwelled there about a ten years,
Ruth 1:4 Cross References - MSTC
Deuteronomy 7:3
3 Also thou shalt make no marriages with them, neither give thy daughter unto his son nor take his daughter unto thy son.
Deuteronomy 23:3
3 The Ammonites and the Moabites shall not come into the congregation of the LORD; no, not in the tenth generation, no they shall never come in to the congregation of the LORD,
1 Kings 11:1-2
1 But king Solomon loved many outlandish women: the daughter of Pharaoh, and of the Moabites, Ammonites, Edomites, Sidonians and Hittites,
2 even of nations of which the LORD said unto the children of Israel, "See ye come not at them, nor let them come to you: for surely they will turn your hearts after their gods." Nevertheless to such Solomon clave and fell in love with them.
Matthew 1:5
5 Salmon begat Boaz of Rahab; Boaz begat Obed of Ruth; Obed begat Jesse;