Talmud zu Divrej Hajamim I 26:8

It is written: “¹⁹⁰An inexact quote of 1Chr. 13:14, 2S. 6:10. The ark of the Eternal dwelt in the house of Obed Edom for three months, and the Eternal blessed,” etc. By what did he bless him? With sons. That is what is written: “¹⁹¹1Chr. 26:8. All these were from the sons of Obed Edom, they, their sons and relatives, strong men for the service, sixty” etc., because each one of them gave birth to two every month. How was that? She was impure for seven days¹⁹²Since all children were males, Lev. 12:2., pure for seven days, and gave birth, was impure for seven days, pure for seven days, and gave birth. Sixteen every month¹⁹³16 grandchildren since Obed Edom had 8 sons (1Chr. 26:4–5)., in three months 48. And he, six¹⁹⁴His own wife bore him six more sons. Together with the original 8, that makes 62 in all. In the Babli, Berakhot63b/64a, the wife and all her daughters-in-law each had one birth of sextuplets.. This makes 54 together. And those eight, sum total 62. That is what was written: “¹⁹¹1Chr. 26:8.62 for Obed Edom”.