REFERENCE

AGE AT MARRIAGE

Genesis 25:20

And Isaac was forty years old when he took Rebekah to wife, the daughter of Bethuel the Syrian of Padanaram, the sister to Laban the Syrian.

Genesis 26:34

And Esau was forty years old when he took to wife Judith the daughter of Beeri the Hittite, and Bashemath the daughter of Elon the Hittite:

Genesis 41:45-46

[41:45] And Pharaoh called Joseph's name Zaphnathpaaneah; and he gave him to wife Asenath the daughter of Potipherah priest of On. And Joseph went out over all the land of Egypt. [41:46] And Joseph was thirty years old when he stood before Pharaoh king of Egypt. And Joseph went out from the presence of Pharaoh, and went throughout all the land of Egypt.

Acts 7:23, 29, Exodus 2:21

[Acts 7:23] And when he was full forty years old, it came into his heart to visit his brethren the children of Israel. [Acts 7:29] Then fled Moses at this saying, and was a stranger in the land of Madian, where he begat two sons. [Exodus 2:21] And Moses was content to dwell with the man: and he gave Moses Zipporah his daughter. (There is good probability that Moses was 40 years old when he married Zipporah.)