Change

We are not changed by simply knowing God's word. We are changed by doing God's word.

2 Corinthians 5:7 (ESV)
For we walk by faith, not by sight.

The changes occur as we believe what is written and walk forth in faith knowing it is truth.

Many spend a lifetime studying the word of God. They analyze it. They read what others have said about it. They dissect each word. They can quote chapter and verse. The words they read remain words. The only change is increased knowledge.

John 6:29 (NKJV)
Jesus answered and said to them, "This is the work of God, that you believe in Him whom He sent."

It doesn't take knowledge, it takes belief and the faith to step out and act on that belief. Jesus told his disciples that the only work there was to do was to believe in him, the one the father sent.

So it does not matter how long someone has been born again. It does not matter if they have memorized the Scriptures. It does not matter how long they have been going to a church.

John 14:26 (NKJV)
But the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all things that I said to you.

All it takes is to receive it, believe it, and walk in it. The Holy Spirit resides in every born-again believer. God's word tells us so and He also tells us... Believe it. Walk in it. See what God will do.