"He being one of the"

1. Mosiah 18: 12
     12 And now it came to pass that Alma took Helam, he being one of the first, and went and stood forth in the water, and cried, saying: O Lord, pour out thy Spirit upon thy servant, that he may do this work with holiness of heart.
2. Alma 10: 31
     31 And there was one among them whose name was Zeezrom. Now he was the foremost to accuse Amulek and Alma, he being one of the most expert among them, having much business to do among the people.