Alma 23:16

And now it came to pass that the king and those people which were converted, were desirous that they might have a name, that thereby they might be distinguished from their brethren; therefore the king consulted with Aaron and many of their priests, concerning the name that they should take upon them, that they might be distinguished.

The king and the people who had believed wanted a new name. They wanted to be different from their brothers and sisters who didn’t believe. So the king talked with Aaron and many of their priests. They talked about what name they should choose.

The king and those who had turned to the Lord wanted a name—something to set them apart from their relatives. So the king talked it over with Aaron and many of their priests to decide what they should be called.