Read Isaiah 30:19-26.

“And thine ears shall hear a word behind thee, saying, This is the way, walk ye in it, when ye turn to the right hand, and when ye turn to the left” (v. 21).

I am thinking about a young man who was hired to do oil changes in a mechanic’s shop. Excited to be working on cars, he did his work well. When he was caught up on his work, he spent his time first watching, then helping a mechanic. Before long, he was doing minor repairs. A few years later, he was the lead mechanic for a dealership that sold multiple lines of new and used vehicles. He grew in his knowledge, understanding, and abilities involving auto repair.
From the moment of conversion, Christians begin experiencing spiritual growth. We learn a lot about serving God as we read His Word, pray, and listen to Bible-based preaching. Regardless of our strength or maturity, we sometimes face questions or issues in life when we don’t know the answers. In those times, as we seek God’s guidance and will, God leads us.
The Holy Spirit, who lives in every born-again person, seldom uses an audible voice. Instead, He reminds us of what the Bible teaches, what we have learned through preaching, Bible reading, and study. Sometimes we find what seems to be a “new truth” in the Bible when in reality, it has been there all the time. (MDA)

Following Jesus produces spiritual growth and maturity.