לְהַעֲל֤וֹת חֵמָה֙ לִנְקֹ֣ם נָקָ֔ם נָתַ֥תִּי אֶת־דָּמָ֖הּ עַל־צְחִ֣יחַ סָ֑לַע לְבִלְתִּ֖י הִכָּסֽוֹת׃ (פ)
Rashi on Ezekiel
So that it might bring up fury before Me. I [therefore (Etz Chaim ms.)] commanded that blood not to be absorbed into the ground, in order that it might be remembered, so that My vengeance might be taken.