Mark the eloquent omission of the name of the builder of the wall. 'God' is a supplement. Salvation 'will _He_ appoint for walls and bulwarks.' No need to say who it is that flings such a fortification around the city. There is only one hand that can trace the lines of such walls; only one hand that can pile their stones; only one that can lay them, as the walls of Jericho were laid, in the blood of His first-born Son. 'Salvation will He appoint for walls and bulwarks.' That is to say in a highly imaginative and picturesque form, that the defense of the City is God Himself; and it is substantially a parallel with other words which speak about Him as being 'a wall of fire round about it and the glory in the midst of it.' The fact of salvation is the wall and the bulwark. And the consciousness of the fact and the sense of possessing it, is for our poor hearts, one of our best defenses against both the evil of sin and the evil of sorrow. For nothing so robs temptation of its power, so lightens the pressure of calamities, and draws the poison from the fangs of sin and sorrow, as the assurance that the loving purpose of God to save grasps and keeps us. They who shelter behind that wall, feel that between them and sin, and them and sorrow, there rises the inexpugnable defense of an Almighty purpose and power to save, lie safe whatever betides. There is no need of other defenses. Zion 'Needs no bulwarks, No towers along the steep.' God Himself is the shield and none other is required. So, brethren, let us walk by the faith that is always confident, though it depends on an unseen hand. It is a grand thing to be able to stand, as it were, in the open, a mark for all 'the slings and arrows of outrageous fortune' and yet to feel that around us there are walls most real, though invisible, which permit no harm to come to us. Our feeble sense-bound souls much prefer a visible wall. We, like a handrail on the stair. Though it does not at all guard the descent, it keeps our heads from getting dizzy. It is hard for us, as some travellers may have to do, to walk with steady foot and unthrobbing heart along a narrow ledge of rock with beetling precipice above us and black depths beneath, and we would like a little bit of a wall of some sort, for imagination if not for reality, between us and the sheer descent. But it is blessed to learn that naked we are clothed, solitary we have a Companion, and unarmed we have our defenceless heads covered with the shadow of the great wing, which, though sense sees it not, faith knows is there. A servant of God is never without a friend, and when most unsheltered 'From marge to blue marge The whole sky grows his targe, With sun's self for visible boss,' beneath which he lies safe.