Genesis 32 records Jacob returning toward Canaan after years with Laban. He sent his wives, children, and possessions across the Jabbok and remained alone during the night.
There Jacob wrestled with a man until daybreak. Jacob received a blessing and the new name Israel, because he had striven with God and with men and had prevailed. Jacob named the location Peniel or Penuel.
The Jabbok later appears as an important territorial boundary. Numbers and Deuteronomy describe the territory of Sihon extending from the Arnon to the Jabbok, while the river also marked part of the boundary associated with Ammonite territory.