Drew and Josiah talk a little bit about spiritual maturity and how the church sometimes expects rapid growth when God expects us to grow with Him. 

Book recommendation Secrets of Spiritual Growth by Martin Trench

https://www.amazon.com/Secrets-Spiritual-Growth-are-next/dp/B087L4NG2Q/ref=sr_1_3?dchild=1&keywords=Martin+Trench&qid=1602682963&sr=8-3