YOU SAID:

And though to his own hurt he swears,

INTO JAPANESE

そして彼自身のけがに彼は誓うが、

BACK INTO ENGLISH

And he swears to his own injury,

INTO JAPANESE

そして彼は自分のけがをすることを誓います、

BACK INTO ENGLISH

And he swears to hurt himself,

INTO JAPANESE

そして彼は自分を傷つけることを誓います、

BACK INTO ENGLISH

And he swears to hurt himself,