Amminadab the father of Nahshon,
Nahshon the father of Salmon,
Salmon the father of Boaz, whose mother was Rahab,
Boaz the father of Obed, whose mother was Ruth,
Obed the father of Jesse,
and Jesse the father of King David.
David was the father of Solomon, whose mother had been Uriah's wife,
Solomon the father of Rehoboam,
Rehoboam the father of Abijah,
Abijah the father of Asa,
Asa the father of Jehoshaphat,
Jehoshaphat the father of Jehoram,
Jehoram the father of Uzziah,
Uzziah the father of Jotham,
Jotham the father of Ahaz,
Ahaz the father of Hezekiah,
Hezekiah the father of Manasseh,
Manasseh the father of Amon,
Amon the father of Josiah,
and Josiah the father of Jeconiah and his brothers at the time of the exile to Babylon.
After the exile to Babylon:
Jeconiah was the father of Shealtiel,
Shealtiel the father of Zerubbabel,
Zerubbabel the father of Abiud,
Abiud the father of Eliakim,
Eliakim the father of Azor,
Azor the father of Zadok,
Zadok the father of Akim,
Akim the father of Eliud,
Eliud the father of Eleazar,
Eleazar the father of Matthan,
Matthan the father of Jacob,
and Jacob the father of Joseph, the husband of Mary, of whom was born Jesus, who is called Christ.
Thus there were fourteen generations in all from Abraham to David, fourteen from David to the exile to Babylon, and fourteen from the exile to the Christ.
(Matt. 1:1-17 NIV)
On several occasions God indicated that Abraham's seed or offspring would grow to include vast numbers of people. "And I will make thy seed as the dust of the earth: so that if a man can number the dust of the earth, then shall thy seed also be numbered." (Gen 13:16 KJV) "And he brought him forth abroad, and said, Look now toward heaven, and tell the stars, if thou be able to number them: and he said unto him, So shall thy seed be." (Gen 15:5 KJV) The number would be literally astronomical, as the latter verse indicates.
In a general sense Abraham's seed would include all of his offspring, of course. But God made a distinction and indicated that the promises he gave to Abraham would apply to a certain line of descent. When a conflict developed between Abraham's young son Isaac, whom his wife Sarah had borne, and his older son Ishmael, his child through Sarah's servant Hagar, God instructed him to send Hagar and Ishmael away, as Sarah had requested: "And God said unto Abraham, Let it not be grievous in thy sight because of the lad, and because of thy bondwoman; in all that Sarah hath said unto thee, hearken unto her voice; for in Isaac shall thy seed be called. And also of the son of the bondwoman will I make a nation, because he is thy seed." (Genesis 21:12-13 KJV)
God would cause a nation of people to descend from Ishmael, "because he is thy seed," but the promised blessings would come through Isaac, "for in Isaac shall thy seed be called." Or, as the New Living Translation puts it, "for Isaac is the son through whom your descendants will be counted." (Gen.