It is certain that no subject has been more frequently dealt with in sermons, books, lectures, pamphlets and articles during the present century than the question of ‘Christian Unity’. It is equally true to say that no subject has caused so much confusion in the minds and hearts of members of churches.Were it merely a matter of organisation, it would not be so serious; but as the exposition of this key passage in Ephesians 4:1-16 shows, it involves vital doctrines. Dr Lloyd-Jones expounds those doctrines in this the fourth volume in a series of eight.