Clearly, translating scripture is a complicated undertaking that takes many years of study to master. Sometimes, people try tomfoolery by speaking in exegetical mumbo jumbo to get their particular translation to seem valid, according to their desires. The pope did not necessarily do that. Nonetheless, based on another passage in the Bible, he tries to force a theological interpretation upon the text of this passage, changing the rendering of the translated text to say something the original text does not say.
I recommend that you do follow up my brief explanation with your own study. Studying the Word of God in careful detail is a profitable undertaking for any believer, with blessings of understanding and application that just cannot be had from a cursory reading.
In Christ, Roger