God’s Word presents things as they really are, revealing Jehovah’s attributes, purposes, and commands, as well as the true state of affairs among mankind. God’s Word of truth shows what is required for one to be sanctified or made holy, set apart for use by Jehovah in his service, and then to remain in a sanctified state.
Hence, Jesus could pray respecting his followers: “Sanctify them by means of the truth; your word is truth.” (Joh 17:17; compare Jas 1:18.) Their obedience to the revealed truth of God’s Word led them into sanctification, the truth being the means by which they purified their souls. (1Pe 1:22) Thus they stood out as “no part of the world” that did not adhere to God’s truth.—Joh 17:16.