The answer is: With guiltless gore.
Step-by-step explanation:
The excerpt is taken from the poem called: "The Bloody Massacre perpetrated in King - Street Boston on March 5th, 1770 by a party of the 29th Regt." This poem depicts the Boston Massacre. And there is also a picture attached to the poem which shows what happened that day. In line 2 of the same poem there is a scripture that says: "Thy hallow'd walks besmear'd with guiltless gore".