Answer:
The character who speaks these words is: A former slave named George Harris in a southern state
Explanation:
In this excerpt from Unce Tom's Cabin, the one who speak this words is a former slave named George Harris who was once property of "Mr. Harris of Kentucky" but now claims to be a free man, he speaks this words in a confrontation with Tom Loke, who claimed to have the law on his side and questions George and his family's freedom.