4 who took Moabite women as their wives, one named Orpah and the other named Ruth. And after they had lived in Moab about ten years,
Ruth 1:4 Cross References - BSB
Deuteronomy 7:3
3 Do not intermarry with them. Do not give your daughters to their sons or take their daughters for your sons,
Deuteronomy 23:3
3 No Ammonite or Moabite or any of their descendants may enter the assembly of the LORD, even to the tenth generation.
1 Kings 11:1-2
1 King Solomon, however, loved many foreign women along with the daughter of Pharaoh—women of Moab, Ammon, Edom, and Sidon, as well as Hittite women.
2 These women were from the nations about which the LORD had told the Israelites, “You must not intermarry with them, for surely they will turn your hearts after their gods.” Yet Solomon clung to these women in love.
Matthew 1:5
5 Salmon was the father of Boaz by Rahab, Boaz the father of Obed by Ruth, Obed the father of Jesse,