Teacher Some [at] gmail [dot] com
Context: This is the expansion of the family of Adam and Eve. There is no explicit sex, just one battle between brothers (Cain and Abel), a list of names born and to whom and how long they lived.
Context: Abram is 86 years old when Ishmael, Hagar's son, is born, and Sarai is 76. It is entirely likely that Sarai feared that she would lose her status in the household and Abram would take a younger bride to be his favored wife. By asking Abram to have a child by her servant, she maintains some control over the situation.
Many quibble with the phrase "as a wife", saying that Hagar was really a concubine and not wedded to Abram. Whether Hagar is wife or concubine, this is clearly a broader definition of marriage than "a union of one man and one woman."
This is also the start of the controversy between Judaism and Islam. The above translation is a Jewish work. A Muslim work would have Hagar as a co-wife and not a slave.
Context: The first thing to note is that the name Abram became the name Abraham in Genesis 17:5 as part of God’s promise to make him a father to a multitude of peoples. The Muslim phrase “peoples of the book”, meaning the peoples of Judaism, Christianity, and Islam, is a reference to the descendants of Abraham.
Context: Abraham is 99 years old, his wife ten years younger. Isaac will be born when Abraham is 100 and Sarah 90. While sex is not mentioned directly, this is not implied to be an immaculate conception. As with prior mentions of sexuality, there is a strong emphasis on increasing the number of people in the tribe.