Jacob is briefly talked about three times in chapter 11 of Hebrews.
The first verse where he is talked about is verse 9, which states that Jacob was, in addition to Isaac and Abraham, "an heir of the same promise"- the promise that God first made to Abraham.
The second verse is verse 20, which states, "By faith Isaac blessed Jacob and Esau concerning things to come."
The third time Jacob is talked about in Hebrews is in verse 21("By faith Jacob, when he was dying, blessed both the sons of Joseph; and worshipped, leaning upon the top of his staff.")