The First Presidency Is Shown How the Kirtland Temple Should Look

Doctrine and Covenants 95:13–15 

13 Now here is wisdom, and the mind of the Lord—let the house be built, not after the manner of the world, for I give not unto you that ye shall live after the manner of the world;
14 Therefore, let it be built after the manner which I shall show unto three of you, whom ye shall appoint and ordain unto this power.
15 And the size thereof shall be fifty and five feet in width, and let it be sixty–five feet in length, in the inner court thereof.

Lucy Mack Smith said:

“Some were in favor of building a frame house, others a log house. Joseph reminded them that they were not building a house for a man, but for God; ‘and shall we, brethren,’ said he, ‘build a house for our God, of logs? No, I have a better plan than that. I have a plan of the House of the Lord, given by Himself; and you will soon see by this the difference between our calculations and His idea of things.’”

(“Lucy Mack Smith, History, 1845,” page 226,