I believe the greatest necessity for having a changed life is seeing the end result. Christians who are not seeing much change in their life are probably not seeing the transformation that has already occurred in them. Paul said:

“I have been crucified with Christ; it is no longer I who live, but Christ lives in me; and the life which I now live in the flesh I live by faith in the Son of God, who loved me and gave Himself for me.

I do not set aside the grace of God; for if righteousness comes through the law, then Christ died in vain” Galatians 2:20-21 (NKJV)

He didn’t add Christ onto His life, he began a new life! Paul valued the new and let go of the old.

For example, when your car gets old you have a choice to make. If you’re in Russia you get out the duct tape and wire to keep it going. That’s not very exciting. You could go to the mechanic and get a few new parts added to what you’ve got. Not very exciting. You go out and buy a used car. A little better, but still, not very exciting. But, if you go out and buy a brand new car…now that will get you excited!

If you’re not excited about your faith, you’re probably working with an “add-on,” instead of the brand-new you that God has made you!