Jesus uses the market price of sparrows to illustrate something regarded as economically insignificant.
Jesus in Context
Sparrows Sold for Small Coins
Jesus refers to small birds sold as inexpensive market goods for coins of very low value.
Introduction
Historical and Cultural Context
Matthew names the assarion, a low-value copper coin. Luke mentions five sparrows sold for two such coins. Small birds could be eaten and sold in marketplaces, and Jesus deliberately chooses creatures carrying very little monetary value.
Why It Matters
The economic detail sharpens the saying. Jesus contrasts the birds' negligible market price with God's knowledge and care.