It means no longer being under the law of sin and death, but under the rule of grace.

这是指不再受罪恶死亡的律所束缚，乃在恩典的管理之下。

youdao

Even Congress, when faced with the opportunity to fund the massive federal health reform effort with a soda sin tax, took the wiser route and left the tax out of the final law.

FORBES: Discriminatory Sin Tax As Budget-Balancing Device?

Edward Peters, a canon lawyer at Sacred Heart Major Seminary in Detroit, said Francis' statement seems to assume that the "sin" of abortion and the "crime" of abortion are treated equally under church law.

CNN: Pope: All priests can forgive those who've had abortions