A touching reminder of God's care for his children is found in the difference between Matthew 10:29-31 and Luke 12:6-7, two illustrations from Jesus involving the price of sparrows.
A.T. Pierson explains:
Matthew records how two sparrows are sold for a penny, and Luke how five are sold for two pennies; and so it would appear that, when two pennies were offered, an odd sparrow was thrown in, as of so little value that it could be given away with the other four. And yet even for that one sparrow, not worth taking into account in the bargain, God cares. Not one of them is forgotten before God, or falls to the ground without Him. With what force then comes the assurance: "Do not fear, therefore; you are of more value than many sparrows!"
From A.T. Pierson in George Muller of Bristol: His Witness to a Prayer-Hearing God, p. 73 (minor edits).