Son of Boaz and Ruth, born in Bethlehem and laid in the lap of his grandmother-by-marriage Naomi, whom the women of the town blessed for the child. He became the father of Jesse and grandfather of King David, a key link in the line leading to Jesus.
And the women her neighbours gave it a name, saying, There is a son born to Naomi; and they called his name Obed: he is the father of Jesse, the father of David.Ruth 4:17, KJV
Ruth 4:21
And Salmon begat Boaz, and Boaz begat Obed,Ruth 4:21, KJV
1 Chronicles 2:12
And Boaz begat Obed, and Obed begat Jesse,1 Chronicles 2:12, KJV
Matthew 1:5
And Salmon begat Booz of Rachab; and Booz begat Obed of Ruth; and Obed begat Jesse;Matthew 1:5, KJV
Luke 3:32
Which was the son of Jesse, which was the son of Obed, which was the son of Booz, which was the son of Salmon, which was the son of Naasson,Luke 3:32, KJV
See how Obed connects to every other figure in Scripture.