Do you ever wonder why we have certain instructions in the Bible? While it is inspired by God, there were also imminent practical reason for its guidance.
What can keep a generation from being at least as faithful as its predecessors?
What does it look like to move from baby food to something chewier?
What can we do to mature in our faith, rather than becoming "adult children"?
Learning a new skill is a lot more effective when we have something to practice that skill on.
If age does not automatically produce maturity, what should we do when we realize that we (or others) need to grow up, spiritually?
Just because adults can eat solid food, doesn't mean that they can't drink milk, too.
When you say someone is an "old friend", do you mean that they have been your friend for a long time, or that they are advanced in years?
Can we become so focused on our preparations for this earthly life that we forget to prepare for the eternal?
Those of us who have been Christians for a while need to reach a point where we can start to feed ourselves and foster our own Christian growth.