Jesus stated in John 17:19:
“And for their sakes I sanctify Myself, that they also might be sanctified through the truth.” First, some background. The word SANCTIFY means” To set apart for God’s use.” It really means to belong to God, which is why the word is often translated, “holy.” Likewise, the word SAINT comes from the same Greek word, “haggios,” and means, “holy ones, or ones set apart for God.” Indeed, even the term, “HOLY Spirit,” means, “the setting apart spirit.” From this we see that to be holy or sanctified, is by definition, what a saved person IS unto God — by definition …