Jesus Christ had One Personality

QUESTION: If only a sinless Divine Being can make an atonement for sin, and only the human Jesus died, how has an atonement been made?

ANSWER: There are not two personalities in Jesus Christ, but one only — the Son of God, who, since his incarnation combines the human nature with the Divine; and this Personality passed through the experience of death in behalf of his brethren, the whole human race.

— Steele's Answers pp. 174, 175.