There are several possible explanations; here are a few.
- An economic and domestic reality
The was a common Greek coin, equivalent to a denarius, or about one day’s wage.
Ten drachmas could represent a woman’s savings, her dowry, or a precious reserve kept in the household.
In a first-century household setting, it was common for women to manage a small reserve of money for the needs of the home.
- A cultural hypothesis: the wedding necklace
Some Jewish traditions mention a diadem or necklace made up of ten coins, given to the woman at her wedding.
Losing a coin would then be symbolically serious: it could be seen as an injury to the integrity of her marital status or to her dignity.
This reading gives the an emotional dimension: the woman is looking not merely for a coin, but for a part of what ties her to her identity or to her covenant.
- A pedagogical construction: the number ten
The number ten is often used in the Bible to express fullness or totality (cf. the Ten Commandments, the ten plagues of Egypt).
The loss of a single coin out of ten evokes a break in unity, a breach in what was complete.
This reinforces the idea that every individual counts in the Kingdom of God; even a single lost sinner deserves a diligent search.
- A narrative coherence with Luke 15
Luke 15 presents three parables: the lost sheep (1 in 100), the lost (1 in 10), the lost son (1 in 2).
This progression reduces the ratio in order to increase the intensity: the closer the loss, the more painful it is.
The number ten thus also serves to structure Jesus’ teaching, illustrating the value of the individual within a community.