Salmon.

Ruth 4:21
Salmon was the father of Boaz, Boaz was the father of Obed,

1 Chronicles 2:11, 12
Nahshon was the father of Salmon, and Salmon was the father of Boaz. . . .

Salma, Boaz.

Joshua 2:1-22
Then Joshua son of Nun secretly sent two spies from Acacia Grove, saying, "Go, inspect the land, especially Jericho." So they went and entered the house of a prostitute named Rahab and stayed there. . . .

Joshua 6:22-25
Meanwhile, Joshua told the two men who had spied out the land, "Go into the house of the prostitute and bring out the woman and all who are with her, just as you promised her." . . .

Hebrews 11:31
By faith the prostitute Rahab, because she welcomed the spies in peace, did not perish with those who were disobedient.

James 2:25
In the same way, was not even Rahab the prostitute justified by her actions when she welcomed the messengers and sent them off on another route?

Rahab.

Ruth 1:4, 16, 17, 22
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 2:1-4:22
Now Naomi had a relative on her husband's side, a prominent man of noble character from the clan of Elimelech, whose name was Boaz. . . .

Obed begat.

Luke 3:32
the son of Jesse, the son of Obed, the son of Boaz, the son of Sala, the son of Nahshon,