In the Charles Wesley hymn “O For a Thousand Tongues to Sing” the 4th verse begins: He breaks the power of canceled sin, he sets the prisoner free…
What is canceled sin and what power does it have that stands in need of being broken?
Based on the context
He breaks the power of canceled sin,
He sets the prisoner free;
His blood can make the foulest clean,
His blood availed for me.
I would think it means His redemptive act has cancelled sin (“His blood availed for me”), not that it’s already cancelled when He breaks its power. Sin is cancelled if the person repents, because of the redemption Jesus won us.
I took it to mean that he is capable of reforming/rehabilitating the person affected by the sin, as well as cancelling the spiritual consequences of the sin itself.