'Built an Altar' in the Bible

Then Joshua built an altar unto the LORD God of Israel, in mount Ebal,

And when they came unto the coasts of Jordan that lie in the land of Canaan: there the children of Ruben, the children of Gad and the half tribe of Manasseh, built an altar fast by Jordan, and that a great altar to see to.

And when the children of Israel heard say, "Behold the children of Reuben, the children of Gad and the half tribe of Manasseh have built an altar in the forefront of the land of Canaan in the borders of Jordan on the side of the children of Israel":