And Arpachshad lived five and thirty years, and begat Shelah. (ASV)
Luke 3:36 disagrees, inserting a new character (Cainan) between these two.
"Begat" doesn't necessarily indicate an offspring but can indicate any descendent. Skipping generations is common.
Begat = "was the ancestor of" or, more accurately, "was the progenitor of"
Edit this section to note miscellaneous facts.