Amulon gained more and more favor with the Lamanites. As a result Amulon and his brethren began teaching Hebrew to all the Lamanites. What a great blessing that turned out to be when the sons of Mosiah came down to teach the gospel to the Lamanites.
Gradually the Lamanites awakened to the fact that they could not only communicate with one another, they could also trade and make a profit, especially among strangers:
“And they were a people friendly one with another; nevertheless they knew not God; neither did the brethren of Amulon teach them anything concerning the Lord their God, neither the law of Moses; nor did they teach them the words of Abinadi; But they taught them that they should keep their record, and that they might write one to another. And thus the Lamanites began to increase in riches, and began to trade one with another and wax great, and began to be a cunning and a wise people, as to the wisdom of the world, yea, a very cunning people, delighting in all manner of wickedness and plunder, except it were among their own brethren.”