Jos Joshua, chapter Book of Joshua, chapter 22
And when they came unto the borders of Yarden [Descender], that [are] in the land of Kena’an [Merchant], the children of Re’uven [Behold a Son] and the children of Gad [Good Fortune with Troublesome Effort] and the half tribe of M’nasheh [Causing to Forget] built there an altar by Yarden [Descender], a great altar to see to.Jos 18:17