because he believed in god and did what he asked
Abraham!
Abraham
As far as we know Abraham did not have siblings that we know of.
Abraham was the christians father in faith and a person honored by the Muslims
God did not call Abraham righteous he called him "Man of Faith" Because he has big amount of faith.
Judaism, Christianity, and Islam.
Abraham is called father of their nations.
Abraham benefited the hebrews the most, or the Jewish population as we now call them. God said he would bless Abraham's people because of Abraham's great faith.
Abraham was called a man of faith because he obeyed God no matter what he was asked to do he was willing to obey Him.
It says, God spoke to Abraham and commanded him to take his son to Mount Moriah and offer him as a sacrifice to God. This was God's test of Abraham's faith. Abraham loved his son very much, but did not hesitate to follow God's words for he was a man whose faith in God was strong. As Abraham and his son reached the place where the sacrifice was to be performed, Isaac said to his father, "Father, where is the lamb that is to be sacrificed?" Abraham replied, "My son, God will provide the lamb". Because, Abraham was honest to his God, his son was also honest to his father Abraham.
Abraham
The patriarch of the monotheistic religions of Judaism, Christianity, Islam, and the Baha'i Faith is/was Abraham.