Contradiction with Genesis 17:19
This verse speaks of God promising Isaac as the heir, whereas Genesis 16:15 details the birth of Ishmael.
Genesis 17:19: And God said, Sarah thy wife shall bear thee a son indeed; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant, [and] with his seed after him.
Contradiction with Galatians 4:22-23
This passage contrasts the birth of Ishmael according to the flesh and Isaac according to the promise, differing from the simple account of Ishmael's birth in Genesis 16:15.
Galatians 4:22-23: For it is written, that Abraham had two sons, the one by a bondmaid, the other by a freewoman.
Paradox #1
The contradiction or conflict in Genesis 16:15 might relate to the broader narrative of Hagar and Ishmael. It involves themes of favoritism, inequality, and the treatment of individuals based on social status or lineage. This could lead to questions about the fairness and ethics in the relationships between the characters involved.