Catena Aurea on John 14:15–17: Augustine of Hippo

Thus the world, i. e. the lovers of the world, cannot, He says, receive the Holy Spirit: that is to say, unrighteousness cannot be righteous. The world, i. e. the lovers of the world, cannot receive Him, because it seeth Him not. The love of the world hath not invisible eyes wherewith to see that, which can only be seen invisibly. It follows: But ye know Him, for He dwelleth (manebit) with you. And that they might not think this meant a visible dwelling, in the sense in which we use the phrase with respect to a guest, He adds, And shall be in you.