John 15:8, and those who disobeyed the gospel, are here intended. The former, because, as truth is here opposed to unrighteousness, it must signify not only the truths discovered by revelation, but those likewise respecting religion and morality, which are discoverable by the light of nature, and which, among the heathen, were the only foundations of a virtuous conduct. The truth, as it is in Jesus, or the gospel, however, seems to be especially intended, this being styled, the truth of God, Romans 3:7; Romans 15:8; the word of truth, Ephesians 1:13, and elsewhere; the knowledge of it being the knowledge of the truth, 1 Timothy 2:4; 1 Timothy 4:3; the belief of it, the belief of the truth, 2 Thessalonians 2:13; obedience to it, obedience to the truth, Galatians 3:1; Galatians 5:7; walking according to it, walking in the truth, 1 John 2:4; the gospel itself being emphatically styled the truth, Ephesians 4:21
Related Commentaries of John 15:8
John 15:8
8 Herein is my Father glorified, that ye bear much fruit; so shall ye be my disciples.