This evil must be turned back to good... i.e. so as to serve a good purpose, as explained above. In other words, it must be the rectified deficiency itself that brings about a more powerful revelation of God’s perfection. Indeed, the stronger the evil becomes, it simply indicates that a greater perfection wants to be revealed. This is obvious.
For the meaning of perfection is that it has the power to rectify the deficiencies. Thus the perfection is all the greater when it rectifies a greater deficiency. If so, when the Supreme Will wanted to reveal His very great perfection, it was first necessary to reveal a very great deficiency. This itself is part of the revelation of the perfection itself, for it is impossible to understand the perfection without the preceding deficiency, which the perfection rectifies.
If so, when He wants to reveal His perfect, most glorious power, wherein the souls have the greatest delight, a very great deficiency must first be revealed. For according to the deficiency that is revealed, so is the level of the perfection that is revealed at the end, and through a greater deficiency, a more perfect power is revealed.