The ship was built according with instructions from heaven, and they were given in answer to prayer. It is the praying soul that hears God speak. Moses is an illustration of this truth: "And when Moses was gone into the Tabernacle of the congregation to speak with Him, then he heard the voice of One speaking unto him from off the mercy seat that was upon the ark of testimony from between the two cherubim, and He spake unto him." (Num. 7:89.) The life and work of the Prophet Joseph Smith is another illustration of the same truth.