Midrasz do Diwrej ha-jamim I 2:16

Our Rabbis were taught: "There are six persons over whom the Angel of Death did not dominate: Abraham, Isaac, Jacob, Moses, Aaron, and Miriam. The first three because of the words mentioned, and the latter because it is written (Num. 33, 38) By the order of the Lord, etc. But concerning Miriam these words are not written? R. Elazar said: "Miriam also died the same death, because we infer it through the analogy by the word Sham Sham, and Scripture merely withheld it." Our Rabbis were taught: There are seven upon whom the worms have no domination: Abraham, Isaac Jacob, Moses, Aaron, Miriam, Benjamin ben Jacob; according to others, also David. The former six, because of the reasons stated above; and Benjamin, because it is written concerning him (Deut. 23, 12) The beloved of the Lord [is he], he shall dwell in safety, etc. There are four who died without sins of their own but [for the sin committed] through the instigation of the serpent; viz: Benjamin b. Jacob, Amram, father of Moses, Jesse, father of David, and Khiliab b. David. Concerning all of them we hold a tradition, except Jesse, the father of David, which is deduced from the verse, as it is written (II Sam. 17, 25) Now Amasa was the son of a man, whose name was Ithra the Israelite, that went in to Abigal, the daughter of Nachash, sister of Zeruiah, Joab's mother. Was she then the daughter of Nachash? Behold she was the daughter of Ithra as it is written (I Chr. 2, 16) And their sisters were Zeruiah, etc. We therefore say that it means who died through the instigation of the serpent.