What is Sanctification?

Scriptures Referenced:

1 Corinthians 6:11;
1 Peter 1:15-16;
1 Peter 1:18-19;
Matthew 5:16;
Matthew 10:32;
1 Peter 1:14;
2 Chronicles 29:5;
Psalm 15:1-5;
Matthew 23:23;
Hebrews 12:14;
Joshua 3:5;
2 Chronicles 16:9