I know thy works: behold, I have set before thee an open door, and no man can shut it: for thou hast a little strength, and hast kept my word, and hast not denied my name.
Ver. 8. An open door] A fair opportunity of doing thyself good; which those that go about to deprive thee of shall be sure to lose oleum et operam, their toil and tallow.
A little strength] A little grace well improved may do great matters, and set heaven open to a soul. The vine is the weakest of trees, but the most fruitful. Philadelphia with her little strength is discommended for nothing, she made all best use of it.