Altar stone
In Exodus 20:25, this signifies truths formed from good, or good in form, to signifies that nothing of self-intelligence should be involved in its forming. (Apocalypse Explained 391[21, 21])
Exodus 36:1-2
1
"Bezalel and Oholiab shall work with every wise-hearted man, in whom Yahweh has put wisdom and understanding to know how to work all the work for the service of the sanctuary, according to all that Yahweh has commanded."
2
Moses called Bezalel and Oholiab, and every wise-hearted man, in whose heart Yahweh had put wisdom, even everyone whose heart stirred him up to come to the work to do it:
