Isaac
Isaac(Hebrew ×ִצְ×ָק) was the son of Abraham by his wife Sarah and the acestor of the Israelites. In Hebrew, the name Isaac means "he laughs."
Abraham had Isaac when he was already 100 years old. (Genesis 21:5)
One time God told Abraham to kill Isaac and sacrifice him on a rock, and when Abraham was about to do it, God stopped him and said that really He was just testing Abraham's faith. This story of Binding of Isaac. (Genesis 22)
Isaac went on to have two children Esau and Jacob. He favored Esau over Jacob, but was greived with Esau when he married two Hittite women. Nevertheless he tried to give Esau the blessing of the firstborn when he was very old and blind. Thanks to Jacob and Rebekah, Jacob tricked Isaac by putting on goat skins to make Jacob feel rough like Esau. Isaac gave the following blessing to Jacob: "Surely, the smell of my son Is like the smell of a field Which the LORD has blessed. Therefore may God give you Of the dew of heaven, Of the fatness of the earth, And plenty of grain and wine. Let peoples serve you, and nations fall down to you. Be master over your bretheren, And let your mother's sons bow down to you. Cursed be everyone who curses you, and blessed be those who bless you!" (Genesis 27:27b-29) Isaac found out the mistake and gave Esau a lesser blessing: "Behold, your dwelling shall be of the fatness of the eart, And the dew of heaven from above. By your sword you will live, And you shall serve your brother; And it shall come to pass when you become restless, That you shall break his yoke from your neck." Because of Esau's rage, Rebekah convinced Isaac to send Jacob to his uncle for a wife supposedly. Isaac sent Jacob away. Jacob eventually returned with his large family at Mamre or Kirjath Arba (Hebron.) Isaac died at the old age of 180 years old. (Genesis 28, & 35)