In connexion with the passage already quoted, "What ye hear in the ear, that preach ye upon the house-tops," I will take the opportunity of explaining the passage itself, which scarcely seems relevant to the occasion unless we understand its bearings. The context shows that our Lord was speaking of the new doctrines which He had come to teach, and the duty of spreading them, and alludes to a mode of religious teaching which was then in vogue.
THE BLUE THRUSH, OR SPARROW OF SCRIPTURE.
"I am as a sparrow alone upon the house-tops."—Ps. cii. 7.
The long captivity of the Jews in Babylon had caused the Hebrew language to be disused among the common people, who had learned the Chaldaic language from their captors. After their return to Palestine, the custom of publicly reading the Scriptures was found to be positively useless, the generality of the people being ignorant of the Hebrew language.
Accordingly, the following modification was adopted. The roll of the Scriptures was brought out as usual, and the sacred words read, or rather chanted. After each passage was read, a doctor of the law whispered its meaning into the ear of a Targumista or interpreter, who repeated to the people in the Chaldaic language the explanation which the doctor had whispered in Hebrew. The reader will now see how appropriate is the metaphor, the whispering in the ear and subsequent proclamation being the customary mode of imparting religious instruction.
If the reader will now turn to Matt. x. 29, he will find that the word "sparrow" is used in a passage which has become very familiar to us. "Are not two sparrows sold for a farthing? and one of them shall not fall on the ground without your Father.
"But the very hairs of your head are all numbered.
"Fear ye not therefore, ye are of more value than many sparrows." The same sentences are given by St. Luke (xii. 6), in almost the same words.
Now the word which is translated as "Sparrow" is strouthion, a collective word, signifying a bird of any kind. Without the addition of some epithet, it was generally used to signify any kind of small bird, though it is occasionally employed to signify even so large a creature as an eagle, provided that the bird had been mentioned beforehand. Conjoined with the word "great," it signifies the ostrich; and when used in connexion with a word significative of running, it is employed as a general term for all cursorial birds.