As Moses the servant of the Lord commanded the children of Israel, as it is written in the book of the law of Moses,.... Deu 27:5, an altar of whole stones, on which no man hath lift up any iron; See Gill on Exo 20:25; see Gill on Deu 27:5, and; see Gill on Deu 27:6, and they offered thereon burnt offerings unto the Lord, and sacrificed peace offerings; by way of thanksgiving for the good land they were introduced into, and this was what they were ordered to do by Moses, Deu 27:6.