Charles Ellicott Commentary 1 Chronicles 28:12

"and the pattern of all that he had by the Spirit, for the courts of the house of Jehovah, and for all the chambers round about, for the treasuries of the house of God, and for the treasuries of the dedicated things;" — 1 Chronicles 28:12 (ASV)

And the pattern of all that he had by the spirit. —Rather, the pattern of all that was (or had come to be) in the spirit with him: i.e., had come into his mind; the whole design as it lay in his mind. (Compare the phrase in 1 Chronicles 28:2: with my heart it was to build. See 1 Chronicles 28:19, which attributes the design of the Temple to Divine inspiration.)

Of the courts. — For the courts.

The chambers. — The cells (lĕshâkhôth). (Compare 1 Chronicles 23:28.)

The treasuries. — For the treasures (1 Chronicles 26:20, and Notes).