Just as each of us has one body with many members, and not all members have the same function,
4. For as in one body, etc. The very thing which he had previously said of limiting the wisdom of each according to the measure of faith, he now confirms by a reference to the vocation of the faithful; for we are called for this end, that we may unite together in one body, since Christ has ordained a fellowship and connection between the faithful...
We may observe here, according to the scheme mentioned in the contents, the apostle's exhortations, I. Concerning our duty to God, We see what is godliness. 1. It is to surrender ourselves to God, and so to lay a good foundation. We must first give our own selves unto the Lord, Co2 8:5. This is here pressed as the spring of all duty and obedience, Rom 12:1, Rom 12:2.
Commenting on Romans 12:1-21
For as we have many members in one body,.... The apostle illustrates what he said last concerning God's dealing to every man the measure of faith, by comparing the church of Christ to an human body, which is but one, and has many members in union with it, and one another; and which are placed in an exact symmetry and proportion, and in proper subserviency...