This the Lord did that they might know that He was their Leader, and that it was by His power they were fed and cared for.
After making a fire, Nephi melted the iron ore to get the iron out of it, and then he made tools from the iron.
When Nephi's brothers saw that he was going to build a ship and cross the ocean in it they made fun of him and called him foolish. They did not believe he could build a ship, nor did they think he could cross the great waters in the ship if he should build one. They were not willing to help him, as they did not believe he was instructed by the Lord.
Nephi reasoned with his brethren when he found they did not believe the Lord had instructed him to build the ship. He reminded them of how the Lord delivered their forefathers out of Egypt, and how He had led their father Lehi and family from Jerusalem, and cared for them on their way. Nephi also spoke to them about their wickedness and their unbelief. This made them angry again, and they wanted to throw him into the sea. As they were about to take hold of him Nephi commanded them in the name of the Lord to not touch him. He was filled with the Spirit of the Lord, and told them if they touched him the Lord would smite them, or strike them so that they would wither.
For several days after this they did not dare to touch Nephi. Then the Lord told him to stretch his arm out towards his brethren, and He would shake them. This Nephi did and the Lord shook them so much that they were willing to believe in Him. They then fell down and were going to worship Nephi, but he told them to worship the Lord and honor their father and mother.
The brothers were now willing to help Nephi build the ship.
From time to time, as He promised, the Lord instructed Nephi about how he should make the vessel, and Nephi and his brethren got out timber and worked it according to the instructions they received.
STYLES OF SHIPS USED IN OLDEN TIMES.
When the ship was finished they saw that it was good, and the work on it was very fine; and those who laughed at Nephi and said he could not build a ship were humble now, and they believed the Lord had guided and instructed him.