Theophylact of Ohrid — as excerpted in the Catena Aurea on Luke 1:47

“But he magnifies God who worthily follows Christ, and now that he is called Christian, lessens not the glory of Christ by acting unworthily, but does great and heavenly things; and then the Spirit (that is, the anointing of the Spirit) shall rejoice, (i. e. make him to prosper,) and shall not be withdrawn, so to say, and put to death.”