I see mercy as the key quality of the end time people of God. They are aware at the very core of their being that they have been shown great mercy and they are about their Father's business demonstrating great mercy. The principalities and powers now cast down from their positions of authority "overcome" but only to find that, just like at the cross, their victory is a hollow one. It redounds to the glory of God. When the people of God tremble at Paul's words in Romans 9:1-3, they are ready for the journey to the end of Chapter 11, and the exulting song of worship to God that leads to the call to "present your bodies as a living sacrifice." Raise up such a body of believers mighty God!