Jehovah rebukes the elders for neglecting the commandment to build His house in Kirtland, naming the delay a grievous sin — not because the structure itself is the goal, but because the house is the appointed instrument for endowing chosen servants with power from on high, preparing them to prune the vineyard for the last time and to pour out the Spirit upon all flesh. The condition is plain: obedience carries power to build; disobedience withdraws the love of the Father and leaves men walking in darkness at noon-day. Precise dimensions and a two-court arrangement are given — the lower court for sacrament, preaching, fasting, and prayer; the upper for the school of the apostles — the whole structure ordered by revelation, not after the manner of the world.