What is the 'one body' that believers are baptized into?
Believers are baptized into the body of Christ. This body is pictured like the human body, with every believer connected to the Head, and it gives them their position in Christ. All believers, not just a chosen few, share this union; it is an intrinsic membership, not merely sheep under a shepherd.
Les teaches that all believers—not just a chosen few—are baptized into one body, and that body is the body of Christ. He compares it to the human body: the mind is in control of every facet of the body and responds to it, and so is the body of Christ. Every believer is connected to the Head. Les points out that Paul never uses the illustration that church-age believers are sheep and Christ is the shepherd; instead, believers are intrinsic members of the body connected to the Head, and that gives them their position in Christ. They are not merely sheep under a shepherd but part and parcel of the Head and the body. This is the higher plane of Christian experience Paul sets forth especially in Ephesians, Philippians, and Colossians.