The knowledge of the Truth is a personal relationship with Christ Jesus via His indwelling HolySpirit.<p> The Holy SpiritOfChrist Jesus is the SpiritOfTruth.<p>Many people know about Jesus. Some even know what He said and did. But knowledge about Christ Jesus is not the knowledge of the Truth that this verse is speaking of. <p>Knowledge of the Truth comes by faith in the Word of the Lord concerning Jesus. That faith produces EternalLife in the believer on the authority of the Lord`s Word Rom 10:17 Rom 10:10.<p>In the secular realm, knowledge is the end all.  Disciplines are contrived in which knowledge is pursued.  However, without the correct assumptions, a discipline or thread of knowledge is merely an intellectual game having no connection at all to Truth.<p>The acknowledgement of the Creator must be assumption number one.  Otherwise, the pursuit is the pursuit of a fool. Pro 1:7 Pro 9:10 Psm 14:1 Psm 53:1 Rom 1:21<hr>Understanding the Truth comes only by exercising the Truth.