He was a burning and a shining light: and ye were willing for a season to rejoice in his light. He was a burning and a shining light - Ην ὁ λυχνος ὁ καιομενος και φαινων, should be translated, He was a burning and a shining Lamp. He was not το φως του κοσμου, the light of the world, i.e. the sun; but he was ὁ λυχνος, a lamp, to give a clear and steady light till the sun should arise. It is supposed that John had been cast into prison about four months before this time. See the note on John 4:35. As his light continued no longer to shine, our Lord says he Was.
The expression of lamp our Lord took from the ordinary custom of the Jews, who termed their eminent doctors the lamps of Israel. A lighted candle is a proper emblem of a minister of God; and, Alteri serviens consumor - "In serving others, I myself destroy:" - a proper motto. There are few who preach the Gospel faithfully that do not lose their lives by it. Burning may refer to the zeal with which John executed his message; and shining may refer to the clearness of the testimony which he bore concerning Christ. Only to shine is but vanity; and to burn without shining will never edify the Church of God. Some shine, and some burn, but few both shine and burn; and many there are who are denominated pastors, who neither shine nor burn. He who wishes to save souls must both burn and shine: the clear light of the knowledge of the sacred records must fill his understanding; and the holy flame of loving zeal must occupy his heart. Zeal without knowledge is continually blundering; and knowledge without zeal makes no converts to Christ.
For a season - The time between his beginning to preach and his being cast into prison.
To rejoice - Αγαλλιασθηναι, To jump for joy, as we would express it. They were exceedingly rejoiced to hear that the Messiah was come, because they expected him to deliver them out of the hands of the Romans; but when a spiritual deliverance, of infinitely greater moment was preached to them, they rejected both it and the light which made it manifest.