mu.sad denotes a foundation in the laying of the LORD's house and in the image of a foundation in Zion.

The attested uses refer to a foundation: the basis laid for the LORD's house in 2 Chronicles 8:16 and a foundation associated with a stone in Zion in Isaiah 28:16.

1. Foundation laid for a structure or stone · dominant

   In 2 Chronicles 8:16, the construct singular form occurs in the clause about the day the foundation of the LORD's house was laid; the APB renders the verse's building sequence from that laying until completion. In Isaiah 28:16, the absolute singular form occurs in the declaration of a stone in Zion; the APB renders the clause with “a founded foundation.”

   2 Chronicles 8:16Isaiah 28:16

In the Anselm Project Bible: The APB presents the building context in 2 Chronicles 8:16 with “the foundation of the house of the LORD was laid” and the Zion-stone context in Isaiah 28:16 with “a founded foundation.” These phrases show the clauses' presentation rather than a fixed English rendering of the term.