I can’t help but pick up on the 40 year old man again. I believe we are supposed to make some connections here to the 40 years of wilderness wandering.
In the Gospels we see Jesus feeding the 5000 in the wilderness. Over and over Jesus turns wilderness/deserts into fruitful land. This 40 year old fruitless man was made fruitful.
This is the theme of Psalm 107 (and indeed the whole Bible). He turns a desert into pools of water, a parched land into springs of water. – Psalm 107:35
The Lord does this for a purpose. Likewise, my brothers, you also have died to the law through the body of Christ, so that you may belong to another, to him who has been raised from the dead, *in order that we may bear fruit for God. – Romans 7:4.
Can you see visible fruit in Acts 4? Can you see visible fruit in those around you who claim to believe in Jesus? How about in your own life?
Take that section in Acts 4:23-31. Are you a good friend? Are you there for your brothers and sisters? Do you listen? Do you lift up your voice with them? Do you pray for the continued speaking of the gospel?
…or are we just a desert full of sand?