Genesis 30:11–13
11 And Leah said, i“Good fortune has come!” so she called his name iGad.1 12 Leah’s servant Zilpah bore Jacob a second son. 13 And Leah said, “Happy am I! For women jhave called me happy.” So she called his name Asher.2
Genesis 46:16
16 The sons of Gad: Ziphion, Haggi, Shuni, Ezbon, Eri, Arodi, and Areli.
Genesis 46:18
18 zThese are the sons of Zilpah, awhom Laban gave to Leah his daughter; and these she bore to Jacob—sixteen persons.