53. How many sons did Abraham have?
Abraham had only one son.
When God told Abraham to kill his son Isaac, Abraham had two sons (even though God referred to Isaac as Abe's "only son." But God was half-right about that, since Abraham had by this time abandoned his first son, Ishmael.By faith Abraham when he was tried, offered up Isaac ... his only begotten son. Hebrews 11:17
Abraham had two sons.
(at the time God told Abraham to kill his youngest son, Isaac.)And Hagar bare Abraham a son: and Abram called his son's name, which Hagar bare, Ishmael. Genesis 16:15
Abraham had eight sons
When Abraham was 140 years old, he "took" another wife (or concubine) and had six more sons.Then again Abraham took a wife, and her name was Keturah. And she bare him Zimran, and Jokshan, and Medan, and Midian, and Ishbak, and Shuah. Genesis 25:1-2