There is another psalm where this same phrase is employed with a very important and illuminating addition, in which we read, His heart is fixed, trusting in the Lord.' That is the secret of a fixed heart--continuous faith rooted and grounded in Him. This fluttering, changeful, unreliable, emotional nature of mine will be made calm and steadfast by faith, and duties done in the faith of God will bind me to Him; and sorrows borne and joys accepted in the faith of God will be links in the chain that knits Him to me.
But then the question comes, how to get this continuous faith? Brethren! I know no answer except the simple one, by continually making efforts after it, and adopting the means which Christ enjoins to secure it. A man climbing a hill, though he has to look to his feet when in the slippery places, and all his energies are expended in hoisting himself upwards by every projection and crag, will do all the better if he lifts his eye often to the summit that gleams above him. So we, in our upward course, shall make the best progress when we consciously and honestly try to look beyond the things seen and temporal, even whilst we are working in the midst of them, and to keep clear before us the summit to which our faith tends. If we lived in the endeavour to realise that great white throne, and Him that sits upon it, we should find it easier to say, My heart is fixed, O God! my heart is fixed.'
But be sure of this, there will be no such uniformity of religious experience throughout our lives unless there be frequent times in them in which we go into our chambers and shut our doors about us, and hold communion with our Father in secret. Everything noble and great in the Christian life is fed by solitude, and everything poor and mean and hypocritical and low-toned is nourished by continual absence from the secret place of the Most High. There must be moments of solitary communion, if there are to be hours of strenuous service and a life of continual consecration.
We need not ask ourselves the question whether the realisation of the ideal of this fixedness in its perfect completeness is possible for us here on earth or not. You and I are a long way on this side of that realisation yet, and we need not trouble ourselves about the final stages until we have got on a stage or two more.
What would you think of a boy if, when he had just been taught to draw with a pencil, he said to his master, Do you think I shall ever be able to draw as well as Raphael?' His teacher would say to him, Whether you will or not, you will be able to draw a good deal better than now, if you try.' We need not trouble ourselves with the questions that disturb some people until we are very much nearer to perfection than any of us yet are. At any rate, we can approach indefinitely to that ideal, and whether it is possible for us in this life ever to have hearts so continuously fixed as that no attraction shall draw the needle aside one point from the pole or not, it is possible for us all to have them a great deal steadier than in that wavering, fluctuating vacillation which now rules them.
So let us pray the prayer, Unite my heart to fear Thy name,' make the resolve, My heart is fixed,' and listen obediently to the command, He exhorted them all that with purpose of heart they should cleave unto the Lord.'
