'Side' in the Bible

Joab [David’s nephew] the son of Zeruiah and the servants of David also went out and met them by the pool of Gibeon. They sat down, with one group on one side of the pool and the other group on the other side of the pool.

Each one of them seized his opponent by the head and thrust his sword into his opponents side; so they fell down together. Therefore that place was called Helkath-hazzurim [that is, the Field of Sides], which is in Gibeon.

They crossed over the Jordan and camped in Aroer, on the south side of the city which is in the middle of the river valley [of the Arnon] toward Gad, and on toward Jazer.