God is preparing those who follow him to be set apart and renewed through Jesus
The process of sanctification really is a process! He is constantly setting me apart to do His will. The challenge for is that I can easily revert to self-reliance and my own wisdom. So as I get older, I see God continually working to set me apart for His will.
Sanctification is the process believers go through in being made holy or being freed from sin or purified. He is tearing down the notion that it is possible to make yourself holy through your own abilities or works. We must take off our old selves and conform to Christ and trust in Him and Him alone to complete the good work being done in us.