Mordecai Kornfeld: "And Zilpah gave birth" [Bereishit 30:10] - With all the other wives of Yakov the Pasuk says "she conceived and gave birth." Only concerning Zilpah is conception not mentioned.
בְנֵי־לֹ֣וט
Bnei Lot are of an ancient origin. In the migratory tradition of Ruth begun more than two millennia ago, a remnant of David and Solomon migrated into Maritime Southeast Asia which comprises what is now Brunei, East Timor, Indonesia, Malaysia, New Zealand, Papua New Guinea, The Philippines, and Singapore, as well as Melanesia, Micronesia, and Polynesia, with a sizeable minority of Malays migrating back to their tribal allotments in Sephardic Judah, besides Terrestrial and Figurative Jordan.