Isaac ( /ˈaɪzək/;Hebrew: יִצְחָק, Modern Yitsẖak Tiberian Yiṣḥāq, ISO 259-3 Yiçḥaq, "he will laugh"; Yiddish: יצחק, Yitskhok; Ancient Greek: Ἰσαάκ, Isaak; Latin: Isaac; Arabic: إسحاق‎ or Arabic: إسحٰق‎ʼIsḥāq) as described in the Hebrew Bible, was the only son Abraham had with his wife Sarah, and was the father of Jacob and Esau. Isaac was one of the three patriarchs of the Israelites. According to the Book of Genesis, Abraham was 100 years old when Isaac was born, and Sarah was beyond childbearing years.

Isaac was the only biblical patriarch whose name was not changed, and the only one who did not leave Canaan. Compared to those of Abraham and Jacob, Isaac's story relates fewer incidents of his life. He died when he was 180 years old, making him the longest-lived patriarch.

The anglicized name Isaac is a transliteration of the Hebrew term Yiṣḥāq which literally means "He laughs/will laugh."Ugaritic texts dating from the 13th century BCE refer to the benevolent smile of the Canaanite deity El. Genesis, however, ascribes the laughter to Isaac's parents, Abraham and Sarah, rather than El. According to the biblical narrative, Abraham fell on his face and laughed when Elohim imparted the news of their son's eventual birth. He laughed because Sarah was past the age of childbearing; both she and Abraham were advanced in age. Later, when Sarah overheard three messengers of the Lord renew the promise, she laughed inwardly for the same reason. Sarah denied laughing when Elohim questioned Abraham about it.

Ike Schlossbach was a celebrated American polar explorer, submariner and aviation pioneer.

He was born in Bradley Beach, New Jersey and raised in Neptune Township, New Jersey where he attended Neptune High School.

In 1911 Schlossbach became the first Jewish midshipman at the United States Naval Academy in Annapolis, Maryland, winning letters in football and wrestling. He graduated from the Naval Academy in 1915 and volunteered to go to the first submarine school. During World War I he commanded subs in the Mediterranean. In 1921, after World War I, Ike joined the aviation branch of the United States Navy. Ike was first sent to lighter than air flying school (dirigibles). In 1922 he learned to fly fixed wing aircraft. By 1925, then Lieutenant Commander, Schlossbach was leading an aero squadron. First the squadron that flew the record South American flight, and then the first squadron to serve on the first aircraft carrier, the Langley.

Schlossbach had trouble with his left eye, and the Navy assigned him to the Naval Academy, teaching engineering, aviation and coaching the football team. In 1930 at the age of 38, Lieutenant Commander Schlossbach was forced to retire (medically discharged) from the Navy when he lost his eye.