John 10:2

(2) John 10:16 of this chapter finds the commencement of its fulfilment in this mission. The appointment of a new body of disciples, whose very number is symbolical of a wider work, was the first step in the bringing in of the “other sheep.” The Twelve answered to the number of the tribes of Israel; but the Seventy represent the nations of the world. The directions for this work to each body are nearly identical, but the restrictions laid upon the Twelve are not laid upon the Seventy.