'Sanctified' in the Bible
For their sake I sanctify Myself [to do Your will], so that they also may be sanctified [set apart, dedicated, made holy] in [Your] truth.
Both Jesus who sanctifies and those who are sanctified [that is, spiritually transformed, made holy, and set apart for God’s purpose] are all from one Father; for this reason He is not ashamed to call them brothers and sisters,
And in accordance with this will [of God] we [who believe in the message of salvation] have been sanctified [that is, set apart as holy for God and His purposes] through the offering of the body of Jesus Christ (the Messiah, the Anointed) once for all.
according to the foreknowledge of God the Father by the sanctifying work of the Spirit to be obedient to Jesus Christ and to be sprinkled with His blood: May grace and peace [that special sense of spiritual well-being] be yours in increasing abundance [as you walk closely with God].