What does the Bible say about sanctification?

“According as he hath chosen us in him before the foundation of the world, that we should be holy and without blame before him in love:”

Ephesians 1:4

“Who gave himself for us, that he might redeem us from all iniquity, and purify unto himself a peculiar people, zealous of good works.”

Titus 2:14

“But as he which hath called you is holy, so be ye holy in all manner of conversation; Because it is written, Be ye holy; for I am holy”

I Peter 1:15-16

“Take fast hold of instruction; let her not go: keep her; for she is thy life. Enter not into the path of the wicked, and go not in the way of evil men. Avoid it, pass not by it, turn from it, and pass away.”

Proverbs 4:13-15

“My son, attend to my words; incline thine ear unto my sayings. Let them not depart from thine eyes; keep them in the midst of thine heart. For they are life unto those that find them, and health to all their flesh.”

Proverbs 4:20-22

“Put away from thee a froward mouth, and perverse lips put far from thee. Let thine eyes look right on, and let thine eyelids look straight before thee. Ponder the path of thy feet, and let all thy ways be established. Turn not to the right hand nor to the left: remove thy foot from evil.”

Proverbs 4:24-27

“The mouth of a righteous man is a well of life: but violence covereth the mouth of the wicked.”

Proverbs 10:11

“This book of the law shall not depart out of thy mouth; but thou shalt meditate therein day and night, that thou mayest observe to do according to all that is written therein: for then thou shalt make thy way prosperous, and then thou shalt have good success.”

Joshua 1:8