John 17:17 Sanctify them in the truth; Your word is truth.
The word of God completes, perfects (2 Tim. 3:15-17), and edifies us by sanctifying us (John 17:17).
To be sanctified (Eph. 5:26; 1 Thes. 5:23) is to be separated from the world and its usurpation unto God and His purpose, not only positionally (Matt. 23:17, 19) but also dispositionally (Rom. 6:19, 22). God’s living word works in the believers to separate them from anything worldly. This is to be sanctified in God’s word, which is the truth, the reality. John 17:17, footnote 1, Recovery Version Bible
Picture source: photo album on, Jeremiah and Lamentations (Crystallization-study of Jeremiah and Lamentations – SemiAnnual Video Training)