Bloody hands

Isaiah 1:15 is organized as a neat chiasm.  At the center is Yahweh’s rejection of Judah’s prayers, but at the ends are references to hands:

A. in your spreading your hands

B. I will hide my eyes

C. when you multiply prayers

B’. I will not hear

A’. hands covered with blood

The A sections spread out like two hands, hands that, in the last phrase, we discover are covered with blood.