Verse 6
After the manner, &c. The ceremonial ablutions enjoined by Jewish laws and usages, required, in an entertainment to which many guests were invited, a large quantity of water. These vases seem to have been used as reservoirs, furnishing, when filled, a sufficient supply at hand. Clauses of explanation, like this, occurring frequently in John's Gospel, corroborate the supposition that it was written, or at least intended to be read, beyond the limits of Judea.