Jonah 4:6 - Clarke's commentary and critical notes on the Bible

And the LORD God prepared a gourd, and made it to come up over Jonah, that it might be a shadow over his head, to deliver him from his grief. So Jonah was exceeding glad of the gourd. And the Lord God prepared a gourd - I believe this should be rendered in the preterpluperfect tense. The Lord Had prepared this plant, קיקיון kikayon. It had in the course of God's providence been planted and grown up in that place, though perhaps not yet in full leaf; and Jonah made that his tent. And its thick branches and large leaves made it an ample shelter for him, and because it was such, he rejoiced greatly on the account. But what was the kikayon? The best judges say the ricinus or palma Christi, from which we get what is vulgarly called castor oil, is meant. It is a tree as large as the olive, has leaves which are like those of the vine, and is also quick of growth. This in all probability was the plant in question, which had been already planted, though it had not attained its proper growth, and was not then in full leaf. Celsus, in his Hierobot., says it grows to the height of an olive tree; the trunk and branches are hollow like a kex, and the leaves sometimes as broad as the rim of a hat. It must be of a soft or spongy substance, for it is said to grow surprisingly fast. See Taylor under the root קיק, 1670. But it is evident there was something supernatural in the growth of this plant, for it is stated to have come up in a night; though the Chaldee understands the passage thus: "It was here last night, and it withered this night." In one night it might have blown and expanded its leaves considerably, though the plant had existed before, but not in full bloom till the time that Jonah required it for a shelter.