9866. Row one. That this signifies a trine therein as a one, is evident from the signification of a “row,” as being a trine, for three stones constituted it, and “three” signifies what is complete from beginning to end (see n. 2788, 4495, 7715, 9198, 9488). It is said, “as a one,” because a one comes forth from three in successive order, for the consequent simultaneous order that comes-forth from these three when in order side by side, corresponds to the successive things from which they have come-forth, and from which they subsist (n. 9825). It is from this that the three heavens are a one in ultimates, and in like manner each heaven. This has its origin in the Divine Itself, in which is a Trine; namely, the Divine Itself, the Divine Human, and the Divine which proceeds; and these are a One. This Trine itself, and the One Divine, is the Lord. From all this it can be seen why in each row there were three stones, and that by each row is signified a trine as a one. There were four rows for the reason that there are two kingdoms in the heavens, the celestial kingdom and the spiritual kingdom, and in each an internal and an external. The internal and the external of the celestial kingdom were represented by the two rows on the right side of the breastplate; and the internal and the external of the spiritual kingdom, by the two rows on its left side; for the breastplate was a doubled square.

9488. And a cubit and a half the breadth thereof. That this signifies full in respect to truth, is evident from the signification of “one and a half,” as being what is full. The reason why this number signifies what is full, is that “three” has this signification; for the half of a number signifies the like as double the number, because when a number is multiplied it retains the signification the simple number had before it was multiplied (see n. 5291, 5335). (That “three” denotes what is full, see n. 2788, 7718, 9188; and that all numbers in the Word signify real things, n. 482, 487, 575, 647, 648, 755, 813, 1963, 1988, 2075, 2252, 3252, 4264, 4495, 4670, 5265, 5291, 5335, 5708, 6175, 7973.) And from the signification of “breadth,” as being truth (of which just above, n. 9487).