In his book, Devoted to God, Sinclair Ferguson makes an “staggering” observation about how often the Apostle Paul used language in his epistles denoting the doctrine of the believer’s union with Christ. He writes,
“Contrast Paul’s frequent use of the specific expression ‘in Christ’ (over eighty times), and ‘in the Lord’ (over forty times), not to mention the variations of it such as ‘in him.’ The statistic is staggering. It is the basic way Christians in the Pauline churches were taught to think about themselves. They were ‘in Christ’, united to Christ, and therefore sharing ‘with Christ’ in all that he had accomplished for them. After all, as we have seen, they had been ‘baptized into Christ Jesus.’ (p.114)
Think about that for a moment. By Ferguson’s count, not even including Paul’s frequent use of phrases like “in him” (e.g. Ephesians 1:4, 7, 11), that adds up to no less than 120 times that the Apostle Paul used language related to the believer’s union with Christ!
No wonder John Murray once wrote that, “Union with Christ is really the central truth of the whole doctrine of salvation not only in its application but also in its once-for-all accomplishment in the finished work of Christ” (Redemption Accomplished and Applied, p.161). Do we think about our union with Christ in such terms, as being central to the whole doctrine of salvation? Or do we read through the epistles of Paul and simply pass right over such phrases, either not noticing them in the first place, or not giving them much thought at all?
The next time that you are reading through one of the epistles of Paul, take some time to note (highlight?) the numerous times that you come across such phrases as “in Christ”, “in Him”, and the like. You may be surprised to see that the doctrine of union with Christ, as central as it is to the biblical doctrine of salvation, has been hiding under your nose in plain sight all this time!