'To redeem' signifies vindication and liberation, because there are two words in the original language, which mean 'redemption.' One means vindication from evil, and the other means liberation from falsities.

(参考: Apocalypse Explained 328)

269. A Lamb standing as though slain. This symbolizes the Lord in respect to His humanity not acknowledged in the church as Divine.

A lamb in the book of Revelation means the Lord in respect to His Divine humanity, and a lamb as though slain His humanity not acknowledged in the church as Divine - much as in chapter 1:18, where we are told, "[I] was put to death, and behold, I am alive forevermore," which means that the Lord was disregarded in the church and His humanity not acknowledged as Divine (no. 59). The reality of this may be seen in no. 294 below.

Therefore, since the Lamb means the Lord in respect to His Divine humanity, and it is said of the Lamb that it took the book out of the right hand of Him who sat on the throne, and afterward that it opened it and loosed its seven seals, and since no mortal could have done this, but God alone, it follows that the Lamb means the Lord in respect to His Divine humanity, and that being slain means that He was not acknowledged as God in respect to His humanity.