Rebecca and Isaac were second cousins. She was brought from a great distance, by Abraham's servant Eliezer, for the express purpose of avoiding the possibility of Isaac's marriage to a Canaanite. See Genesis ch.24.
Rebecca was married to Isaac the son of Abraham.
No, Isaac was only married to Rebecca. They had twin sons together, Esau and Jacob.
He didn't; and Isaac married only once. He married Rebecca and never had another wife. (You probably meant to ask about Jacob.)
Rebekah was married to Isaac, Abraham's son.Please see related link for more information on Rebekah.
Isaac.
The Bible does not specifically say how old Rebekah was when she married Isaac. Isaac was forty when he married her, and the Bible also tells us that she was a beautiful young woman. Probably in her teen years therefore since she had a nose ring! And was mature enough to tell her family to let her journey away to marry Isaac because the Lord had called her to do so.
Abraham did not want Isaac to marry a Canaanite because he wanted to maintain the purity of his lineage and ensure that his descendants would continue to follow God's covenant. Marrying a Canaanite could potentially lead Isaac away from his faith and commitment to God.
Rebekah was married to Isaac, Abraham's son. Abraham did not want his son to marry a Canaanite and so he sent his servant back to Mesopotamia to the city of Nahor to pick out a wife from Abraham's family. The girl that was chosen (by God's choice) was Rebekah. She was Isaac's cousin, and she was brought back to Canaan to marry Isaac. About 19 years later Rebekah conceived and had twins. Esau and Jacob (Genesis 24:1-66; 25:24-34). These three men, Abraham, Isaac, and Jacob are the Patriarch's of the Hebrew people.
Isaac and Rebekah had twins; Jacob and Esau.
Isaac
Abraham was the father of Isaac (Genesis ch.21). See also:The Israelite patriarchs
If you're asking about Isaac in the Torah (Bible), the answer is yes. He continued Abraham's traditions and was one of the Patriarchs of the Israelite (Jewish) people. His son Jacob fathered the twelve Israelite tribes.