"Who is one"

1. Col. 4: 9, 12
     9 With Onesimus, a faithful and beloved brother, who is one of you. They shall make known unto you all things which are done here.
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     12 Epaphras, who is one of you, a servant of Christ, saluteth you, always labouring fervently for you in prayers, that ye may stand perfect and complete in all the will of God.
2. Alma 20: 10
     10 And he also said: Whither art thou going with this Nephite, who is one of the children of a liar?