Matthew 1:1

Concerning this genealogy of our Saviour, observe, I. The title of it. It is the book (or the account, as the Hebrew word sepher, a book, sometimes signifies) of the generation of Jesus Christ, of his ancestors according to the flesh; or, It is the narrative of his birth. It is Biblos Geneseōs - a book of Genesis. The Old Testament begins with the book of the generation of the world, and it is its glory that it does so; but the glory of the New Testament herein excelleth, that it begins with the book of the generation of him that made the world. As God, his outgoings were of old, from everlasting (Mic 5:2), and none can declare that generation; but, as man, he was sent forth in the fulness of time, born of a woman, and it is that generation which is here declared. II. The principal intention of it. It is not an endless or needless genealogy; it is not a vain-glorious one, as those of great men commonly are. Stemmata, quid faciunt? - Of what avail are ancient pedigrees? It is like a pedigree given in evidence, to prove a title, and make out a claim; the design is to prove that our Lord Jesus is the son of David, and the son of Abraham, and therefore of that nation and family out of which the Messiah was to arise.

— Matthew Henry's Concise Commentary (public domain)