Contradiction with Exodus 1:16
Genesis 16:10 promises a multitude of descendants, while Exodus 1:16 involves a command to kill every newborn son, threatening the growth of descendants.
Exodus 1:16: And he said, When ye do the office of a midwife to the Hebrew women, and see [them] upon the stools; if it [be] a son, then ye shall kill him: but if it [be] a daughter, then she shall live.
Contradiction with Genesis 11:30
Genesis 16:10 foretells numerous offspring, yet Genesis 11:30 states that Sarai was barren, incapable of bearing children.
Genesis 11:30: But Sarai was barren; she [had] no child.
Contradiction with Judges 13:2
Genesis 16:10 suggests abundant offspring, whereas Judges 13:2 speaks of a barren woman unable to conceive.
Judges 13:2: And there was a certain man of Zorah, of the family of the Danites, whose name [was] Manoah; and his wife [was] barren, and bare not.
Contradiction with Jeremiah 15:7
Genesis 16:10 promises increase and multiplication, whereas Jeremiah 15:7 describes reducing and destroying people.
Jeremiah 15:7: And I will fan them with a fan in the gates of the land; I will bereave [them] of children, I will destroy my people, [since] they return not from their ways. [children: or, whatsoever is dear]
Paradox #1
The potential contradiction in Genesis 16:10 could be the promise of a large number of descendants to Hagar, despite her mistreatment and suffering. This might conflict with ideas of justice and fairness, as blessings seem to emerge from a situation of inequality and hardship.