“So all the generations from Abraham to David are fourteen generations; and from David until the carrying away into Babylon are fourteen generations; and from the carrying away into Babylon unto Christ are fourteen generations.”
King James Version (KJV)
1:17 So all the generations - Observe, in order to complete the three fourteens, David ends the first fourteen, and begins the second (which reaches to the captivity) and Jesus ends the third fourteen. When we survey such a series of generations, it is a natural and obvious reflection, how like the leaves of a tree one passeth away, and another cometh! Yet the earth still abideth. And with it the goodness of the Lord which runs from generation to generation, the common hope of parents and children. Of those who formerly lived upon earth, and perhaps made the most conspicuous figure, how many are there whose names are perished with them? How many, of whom only the names are remaining? Thus are we likewise passing away! And thus shall we shortly be forgotten! Happy are we, if, while we are forgotten by men, we are remembered by God! If our names, lost on earth, are at length found written in the book of life!
Mt 1:17 Fourteen generations. There are exactly fourteen generations from Abraham to David, and two other series made to correspond. From David to, etc. David's name is counted again to make the number fourteen. The third series begins with Jeconiah and ends with Christ.