“Take your son, your only son, the one you love, v'lech lecha, and go for yourself to the land of Moriah” (22:2). So begins the command of G-d demanding the sacrifice of Yitzchak. After waiting so long to have a child with Sarah, Abraham was commanded to take his child and return him to G-d. In the face of such a command Abraham was silent—or shall we say speechless?—unable to comprehend the Divine will even as he arose early to carry it out.
Avraham Avinu is known as "ha'Ivri" as the world was on one side, and he was alone on the other. It is not easy challenging the ideas of society around you - and G-d understood that to be successful, Abraham would have to leave home and travel to a foreign land. While Abraham had to start anew, away from most of his family, he was not lonely. He had a loving wife, seemed to make friends easily, and was heavily involved with political leaders around the world like Pharaoh, Avimelech, and the 9 kings at war.