CHAPTER XIX: QUESTION 17: WHAT PERTAINS COMMONLY TO CHRIST'S UNITY OF BEING


PROLOGUE

This question concerns unity in common, but not unity in detail. It has already been determined (q. 9) that there is only one knowledge in Christ, and farther on (q. 35) it will be concluded that there are two births in Christ, the one eternal, the other temporal, but only one real filiation.

In treating of Christ's unity in common, we must consider His unity (1) Of being, (2) of will, (3) of operation.

On unity of being there are two articles:

1) Whether Christ is one or two.

2) Whether there is only one being in Christ