Each tree, declaring that it was used for some holy purpose, objected to being soiled by the unclean body of Haman. Only the thorn-tree could find no excuse, and therefore offered itself for a gallows (Esther Rabbah 9; Midrash Abba Gorion 7 (ed. Buber, Wilna, 1886); in Targum Sheni this is narrated somewhat differently).