"Chapter 28—Unity in our Work As the medical missionary work becomes more extended, there will be a temptation to make it independent of our conferences. But it has been presented to me that this plan is not right. The different lines of our work are but parts of one great whole. They have one center. 6T 235"
"For as the body is one, and hath many members, and all the members of that one body, being many, are one body: so also is Christ."
Both passages discuss the concept of unity within a larger body, whether it be the church or an organization. EGW uses the analogy of different lines of work having one center, while Paul uses the analogy of the body having many members but being one body. The connection is genuine and meaningful.
"In Colossians we read: “The body is of Christ. Let no man beguile you of your reward in a voluntary humility and worshiping of angels, intruding into those things which he hath not seen, vainly puffed up by his fleshly mind, and not holding the Head, from which all the body by joints and bands having nourishment ministered, and knit together, increaseth with the increase of God.” Colossians 2:17-19 . Our work in all its lines is to demonstrate the influence of the cross. The work of God in the plan of salvation is not to be done in any disjointed way. It is not to operate at random. The plan that provided the influence of the cross provided also the methods of its diffusion. This method is simple in its principles and comprehensive in its plain, distinct lines. Part is connected with part in perfect order and relation. 6T 235.2"
"Which are a shadow of things to come; but the body is of Christ. Let no man beguile you of your reward in a voluntary humility and worshipping of angels, intruding into those things which he hath not seen, vainly puffed up by his fleshly mind, And not holding the Head, from which all the body by joints and bands having nourishment ministered, and knit together, increaseth with the increase of God."
Ellen White directly references Colossians 2:17-19 in this passage.