Genesis 4:21

The text runs: "Methushael begot Lamech, who took two wives: the name of the one was Ada, and the name of the other Sella. And Ada brought forth Jobel; who was the father of such as dwell in tents, and of herdsmen. His brother's name was Jubal. He was the father of all those who play the psaltery and cittara. Sella bore Tobel; he was the forger of all instruments of bronze and iron. The sister of Tobel was Noema." This is as far as the line of descent from Cain is carried. There are eight generations in all, including Adam. The seventh is that of Lamech, who was the husband of two wives; the eighth is that of his children, among whom is the woman who is mentioned by name. What is here delicately intimated is that to the very end of its existence the earthly city will be propagated by physical births proceeding from the union of the sexes. This is why we are given the proper names of the wives of the last man mentioned as begetting children—a practice unheard of before the flood, except in the case of Eve.

Jubal was a famous musician, and particularly an organist, and the first that gave rules for that noble art or science of music. When Jabal had set them in a way to be rich, Jubal put them in a way to be merry. From Jubal probably the Jubilee trumpet was so called; for the best music was that which proclaimed liberty and redemption.

Jubal was a famous musician, and particularly an organist, and the first that gave rules for that noble art or science of music. When Jabal had set them in a way to be rich, Jubal put them in a way to be merry. From Jubal probably the Jubilee trumpet was so called; for the best music was that which proclaimed liberty and redemption.

And his brother's name was Jubal,.... This was another son of Lamech by Adah, and his name differs only in one letter from his brother's: he was the father of all such that handle the harp and organ: he was the inventor of instrumental music, both of stringed instruments, such as were touched by the fingers, or struck with a quill, as the "harp"; and of wind instruments, such as were blown, as the "organ", which seems not to be the same we call so, being a late invention; but however a pleasant instrument, as its name signifies.

Jubal - the father - i.e. The inventor of musical instruments, such as the כנור kinnor, which we translate harp, and the עוגב ugab, which we render organ; it is very likely that both words are generic, the former including under it all stringed instruments, and the latter, all wind instruments.