But do not let us forget that this great promise does not belong only to the Church as a whole, but that we have each to bring it down to our own individual lives, and to be quite sure of this, that in spite of all that sense says, in spite of all that quivering hearts and weeping eyes may seem to prove, there is a wall of fire round each of us, if we are keeping near Jesus Christ, through which it is as impossible that any real evil should pass and get at us, as it would be impossible that any living thing should pass through the flaming battlements that the Prophet saw round his ideal city.  Only we have to interpret that promise by faith and not by sense, and we have to make it possible that it shall be fulfilled by keeping inside the wall, and trusting to it.  As faith dwindles, the fiery wall burns dim, and evil can get across its embers, and can get at us.  Keep within the battlements, and they will flame up bright and impassable, with a fire that on the outer side consumes, but to those within is a fire that cherishes and warms.

II.  The next point of the promise passes into a more intimate region.  It is well to have a defence from that which is without us; but it is more needful to have, if a comparison can be made between the two, a glory ‘in the midst’ of us.

The one is external defence; the other inward illumination, with all which light symbolises—­knowledge, joy, purity.

There is even more than that meant by this great promise.  For notice that emphatic little word the—­the glory, not a glory—­in the midst of her.  Now you all know what ‘the glory’ was.  It was that symbolic Light that spoke of the special presence of God, and went with the Children of Israel in their wanderings, and sat between the Cherubim.  There was no ‘Shechinah,’ as it is technically called, in that second Temple.  But yet the Prophet says, ’The glory’—­the actual presence of God—­’shall be in the midst of her,’ and the meaning of that great promise is taught us by the very last vision in the New Testament, in which the Seer of the Apocalypse says, ’The glory of the Lord did lighten it’ (evidently quoting Zechariah), ’and the Lamb is the light thereof.’  So the city is lit as by one central glow of radiance that flashes its beams into every corner, and therefore ’there shall be no night there.’

Now this promise, too, bears on churches and on individuals.  On the Church as a whole it bears in this way:  the only means by which a Christian community can fulfil its function, and be the light of the world, is by having the presence of God, in no metaphor, the actual presence of the illuminating Spirit in its midst.  If it has not that, it may have anything and everything else—­wealth, culture, learning, eloquence, influence in the world—­but all is of no use; it will be darkness.  We are light only in proportion as we are ‘light in the Lord.’  As long as we, as communities, keep our hearts in touch with Him, so long do we shine.  Break the contact, and the light fades and flickers out.