The child continued to grow and become strong in spirit, increasing in wisdom and the grace of God was upon Him
...And Jesus kept increasing in wisdom and stature, and in favor with God and men.
We see here how Jesus our perfect example grow spiritually and physically. His growth is a continual process. It is not the day men was given birth to that He matured. Both physical and spiritual maturity is a gradual growth process. As Christ disciple, The purpose of God for us is to continue increasing both spiritually and physically. We must keep increasing in wisdom and stature. Like Jesus our growth must increase in our relationship with God and men. Our spiritual growth (learning process) should continue until we move on to heaven. We must not be satisfied with the level of our spiritual growth. Our heart desire must be to know Him more and more, and becomes more like Christ till we see Jesus in glory.