This has no ground in scripture. ‘He hath made him to be sin for us who knew no sin’ (2 Cor 5:21). It is terrible to confuse the most wonderful, act of love of that blessed One – the sufferings and death of Christ, His bearing God’s wrath, His His soul Made an offering for sin, with any thought of His proving Himself sinless during His life on earth. Good men, such as the editor of the Christian Examiner (maybe the Unitarian James Walker – 1794-1874) often carried rationalist views.
This is a addition itemof a paper by John Nelson Darby.
The Pauline Doctrine of the Righteousness of Faith
It is published in Collected Writings Volume 7 (Doctrinal 2) page 349.