역대상 21:18 탈무드 참조: Jerusalem Talmud Pesachim

Some Tannaïm state: One intercalates the year because of impurity¹⁶One does not intercalate a 13^th month to give people time to purify themselves in time for the Pesaḥ on the 14^th of Nisan.. Some Tannaïm state: One does not intercalate the year because of impurity. He who says, one does not intercalate, how does he uphold: for they ate the Passover contrary to what is written¹⁷2Chr. 30:18. Hezeqiah celebrated Pesaḥ a month late; that is exactly what Scripture prescribes for impure individuals.? They intercalated in Nisan but only Adar can be intercalated. This follows what Rebbi Simon bar Zavdi said: they found the skull of Ornan the Yebusite under the altar¹⁸This statement is from Soṭah 5:2, Note 90; it must refer to the construction of the altar by Solomon. Hezekiah moved the month because the Temple was not usable in Nisan since similarly the Temple was found to be a “tent” over human bones and thus impure. Ornan was the original owner of the Temple Mount (1Chr. 21:18–26); the text does not imply that Gentiles create tent impurity. Babli Sanhedrin 12a..