Verses with the word sanctify in the New Testament (6 verses):

John 17:17
Sanctify them through thy truth: thy word is truth.

John 17:19
And for their sakes I sanctify myself, that they also might be sanctified through the truth.

Ephesians 5:26
That he might sanctify and cleanse it with the washing of water by the word,

1 Thessalonians 5:23
And the very God of peace sanctify you wholly; and I pray God your whole spirit and soul and body be preserved blameless unto the coming of our Lord Jesus Christ.

Hebrews 13:12
Wherefore Jesus also, that he might sanctify the people with his own blood, suffered without the gate.

1 Peter 3:15
But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that asketh you a reason of the hope that is in you with meekness and fear: