After the vessel had been prepared, Moriancumer ascended a mount to which the pilgrims had given the name, Shelem. Zebach Shelem is the Hebrew for thank offering, wherefore we safely conclude that this mount had been set apart for sacred purposes (See 22:27). Hence the name.
Moriancumer now presented sixteen small stones, clear as transparent glass, before the Lord and asked Him to make them luminous (v. 4). Dr. Adam Clark, in his commentary on the Bible, says that, according to Rabbinical tradition, the word translated window in the story of the Ark of Noah, in Genesis, was a shining object; a stone which the Patriarch had found in the River Pison, and which had been made luminous. If this tradition were founded upon facts, Jared and his family would have heard it from their parents.
A practical application to our own spiritual lives of this account of Moriancumer praying for light, is the lesson that when a servant of the Lord has done all he can to overcome the difficulties he is sure to encounter, he may confidently ask the Lord to do for him what he cannot do for himself. That is the privilege of a child in his father's house. And
When God has touched our efforts
With the finger of His might,
Then every worthless pebble
Is a bright and shining light.