The metaphor of birth provides a helpful way of understanding fuller implications of what it means to know God and to grow in that relationship. Just as a human being is physically born into the world and moves through a developmental cycle from infant to child to adolescent to adult, so a child of God is born spiritually and is called to move through a similar developmental cycle. 

To read the full article https://www.cslewisinstitute.org/Knowing_God_Personally_page1

Recommended Reading: 

Knowing God by J.I Packer   https://www.christianbook.com/knowing-god-j-i-packer/9780830816507/pd/1650X?event=ESRCQ

One of the top 50 books that have shaped evangelicals (Christianity Today, 2006) Platinum Book Award, Evangelical Christian Publishing Association For over 40 years, J. I. Packer’s classic has been an important tool to help Christians around the world discover the wonder, the glory and the joy of knowing God.