Here the Prophet speaks of Nazarites, by whom we know the worship of God was honored; for they, who were not content with the common observance of the Law, consecrated themselves to God, that by their example they might stimulate others. It was then a singular zeal in a few to consecrate themselves, so as to become Nazarites, or separated. What this custom was may be known from the sixth chapter of Numbers. For God, who has always repudiated all fictitious forms of worship, prescribed to the Nazarites what he approved in every particular. Hence Moses carefully men-honed all those things which were to be observed by the Nazarites.
As to the present passage, it is enough to say, that the Nazarites were peculiarly devoted to God’s service during the time of their separation, for it was only a temporary service.
Then the Prophet brings them forward, that it might hence be evident how sad was the change, which he never could have made the Jews to believe. He says that the Nazarites were purer than snow, and whiter that milk, and also ruddier than precious stones, so that they might be corn-pared to sapphire; for, by saying sapphire was their cutting, he means that they were like sapphires well polished. Now we know that the Nazarites abstained from wine and strong drink: hence abstinence might have lessened somewhat of their ruddiness. For he who is accustomed to drink wine, if he abstains for a time, is apt to grow pale; lie will then lose almost all his color, at least he will not be so ruddy; nor will there appear in his face and in his members so much rigor as when he took his ordinary support. Jeremiah, in short, teaches us flint the blessing of God was conspicuous in the Nazarites, for he wonderfully supported them while they were for a time abstinence.