Then Joshua built an altar to Yahweh, the God of Israel, in Mount Ebal,
Regarding the Divine commandment for the use of plain, undecorated stones in the building of God's altar, this indicates that the true worship of God never needs to be doctored up and decorated by human "improvements." "Here is a complete negation of all humanism."[36]  God's altar was not to be decorated, or have carvings of any kind, and its stones were not even to be smoothed or squared.  In the light of this, can it be a mystery why such things as instruments of music do NOT belong in the worship of Jesus Christ?