What's in a name?

(24) When [Rebecca's] time to give birth was at hand, there were twins in her womb. (25) The first one emerged ruddy, like a hairy mantle all over; so they named him Esau. (26) Then his brother emerged, holding on to the heel of Esau; so they named him Jacob. Isaac was sixty years old when they were born.

(27) When the boys grew up, Esau became a skillful hunter, a man of the outdoors; but Jacob was a mild man (tam) who stayed in camp.

(22) But the children clashed together within her, and she said, “If so, why do I exist?” She went to inquire of the LORD,

(25) Jacob was left alone. And a man wrestled with him until the break of dawn. (26) When he saw that he had not prevailed against him, he touched Jacob’s hip at its socket, so that the socket of his hip was strained as he wrestled with him. (27) Then he said, “Let me go, for dawn is breaking.” But he answered, “I will not let you go, unless you bless me.” (28) Said the other, “What is your name?” He replied, “Jacob.” (29) Said he, “Your name shall no longer be Jacob, but Israel, for you have striven with beings divine and human, and have prevailed.”

(21) Sons were also born to Shem, ancestor of all the descendants of Eber and older brother of Japheth.