Charles Spurgeon Commentary Acts 4:21-22

"And they, when they had further threatened them, let them go, finding nothing how they might punish them, because of the people; for all men glorified God for that which was done. For the man was more than forty years old, on whom this miracle of healing was wrought." — Acts 4:21-22 (ASV)

Therefore, it was the more remarkable, forty years lame and yet healed! But how great is the grace displayed in the salvation of an aged sinner—forty years dead in trespasses and in sins—fifty, sixty, seventy, or even eighty years, a faithful servant of the evil tyrant, and yet made to follow the new and better Master! What a triumph of grace is that which snatches the dry branch from the burning when it is so fitted for the fire!