When I think of incorporation in the business sense, i think about people coming together to form one company or unit. When you talk about being incorporated with Christ, i think about the protection and benefits that belong to me being under this incorporation. If I was out there on my own as a sole proprietor, I wouldn't have the protection of a corporation. Through Christ Jesus, I am under His covering which means I have the blessings of peace, love, etc. in my life.