George Foreman was a two-time heavyweight boxing champion of the world.
At age 45, he became the oldest man in the world to win the title.
In his book, God in My Corner, he writes:

When I climbed in the ring during my comeback, the announcers often introduced me as “the former heavyweight champion of the world.”
As they introduced me, I’d mumble to myself, “And the next heavyweight champion of the world.”

How could I ever win the title if I didn’t believe that I could?
If you have a great dream you are attempting to fulfill in your life, you’ve got to believe it can happen before you can actually do it. I wasn’t trying to be proud.
I simply believed what God had promised me—that I would regain the title.
(George Foreman, God In My Corner, Nashville: Thomas Nelson, 2007, p.135)

Matt 7:17-21
17 Even so every good tree bringeth forth good fruit; but a corrupt tree bringeth forth evil fruit.
18 A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit.
19 Every tree that bringeth not forth good fruit is hewn down, and cast into the fire.
20 Wherefore by their fruits ye shall know them.
21 Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.

Parking a bicyle in a garage will not make it a car.
Parking a person in a church will not make him/her a Christian.

In order for one to bring forth good fruit, one must be "rooted and grounded" in Christ and His love.
(Eph. 3:17)
If Christ does not dwell in the heart, men do not perform things that please God.
(Philippians 2:13)

One must have root to produce fruit!

Before a person becomes a real Christian—his "want-to" is broken.
He is not interested in God.
He is bored by church and by reading his Bible.
He cannot "make" himself "want to" do right and he cannot "make" himself "want not" to do wrong.
But, when a person is born again, God repairs his "want-to."
(2Cor. 5:17)
Even though he still feels the pull of temptation, he will have a new set of desires.
He will love God and want to talk to God in prayer and see what God has to say to him in His Word, the Bible.
He wants to be around other people who love God; church attendance and participation becomes meaningful.
There is a new desire to obey God.

There is only one way to be "rooted and grounded" in the love of Christ:
that is to surrender to Him as LORD, and let Him change your "want to."
In Luke 9:23 Jesus said,
"If any man will come after me, let him deny himself, and take up his cross daily, and follow me."

We know a tree's root by its fruit:
Pear trees, Apple trees, Orange trees, etc.

If your "tree" is rooted in Christ, you will produce HIS fruit.
Gal 5:22-25 says,
"22 But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith,
23 Meekness, temperance: against such there is no law.
24 And they that are Christ's have crucified the flesh with the affections and lusts.
25 If we live in the Spirit, let us also walk in the Spirit."

Love ya!