Matthew Poole and continuators on Ruth 4:22

22 And Obed begat Jesse, and Jesse begat David .

How can this be a true Genealogy, seeing by this means four Persons take up three hundred and eighty years, which were between Salmon and David, and consequently every one of them must beget a Son when he was very old? Ans. 1. It is not certain, that each of these was the immediate Parent of him whom he is said to beget: for sometimes Grand-Fathers are said in Scripture to beget their Grand-Children, to wit, by the Intervention of their immediate Sons; whereof Instances have been given. And sometimes in Genealogies whole Generations are omitted, as may appear by Ezra 7. 2. compared with 1 Chron. 6. 3. and by Matth. 1. 8. which might be done here for divers reasons now unknown. 2. There are many Examples even in profane Writers, both Ancient and Modern, of Persons that have not only lived 120, and 130 years and upwards, but have been Vigorous, and have begotten Children at above 100 years old; and of Women that have conceived and born Children at the age of 50, 60, yea, 70 years. And therefore if it were so in these more ancient times, when men were longerlived, and under the Law, when long Life was expresly promised to the Obedient, and in Persons of strong Constitutions, and sober Conversations, such as some of these are known to have been, and the others may justly be presumed to be such, it is not strange, nor in the least incredible.