5 Jesus answered, “Truly, truly, I say to you, unless one is born of water and the Spirit, he cannot enter the kingdom of God. 6 That which is born of the flesh is flesh, and that which is born of the Spirit is spirit. 7 Do not marvel that I said to you, ‘You must be born again.’ 8 The wind blows where it wishes, and you hear its sound, but you do not know where it comes from or where it goes. So it is with everyone who is born of the Spirit.”
John 3:5-8 (ESV)

19 Repent therefore, and turn back, that your sins may be blotted out, 20 that times of refreshing may come from the presence of the Lord, and that he may send the Christ appointed for you, Jesus, 
Acts 3:19-20 (ESV)

6 We know that our old self was crucified with him in order that the body of sin might be brought to nothing, so that we would no longer be enslaved to sin. 7 For one who has died has been set free from sin.
Romans 6:6-7 (ESV)

17 Therefore, if anyone is in Christ, he is a new creation. The old has passed away; behold, the new has come. 
2 Corinthians 5:17 (ESV)

19 But God’s firm foundation stands, bearing this seal: “The Lord knows those who are his,” and, “Let everyone who names the name of the Lord depart from iniquity.”
2 Timothy 2:19 (ESV)