[12] I do not know that I have ever seen an entirely satisfactory statement of what constitutes a call to the ministry. Probably it is one of those things of the Spirit which cannot be mathematically defined. The variety of the calls in Scripture warns us against laying down any scheme to which the experience of every one must conform. It is the same as with the commencement of the spiritual life, where also the work of the Spirit of God overflows our definitions. While some can remember and describe the whole process through which they have passed, others who exhibit as undeniably the marks of the Divine handiwork can give comparatively little account of how it took place. The test of the reality of the change is not its power of being made into a good story. In the one case, however, as in the other, a conscientious man will give all diligence to make his calling and election sure. Excellent chapters on the subject will be found in Spurgeon's _Lectures to My Students_ and Blaikie's _For the Work of the Ministry_.
[13] "You have to be busy men, with many distractions, with time not your own: and yet, if you are to be anything, there is one thing you must secure. You must have time to enter into your own heart and be quiet, you must learn to collect yourselves, to be alone with yourselves, alone with your own thoughts, alone with eternal realities which are behind the rush and confusion of moral things, alone with God. You must learn to shut your door on all your energy, on all your interests, on your hopes and fears and cares, and in the silence of your chamber to 'possess your souls.' You must learn to look below the surface; to sow the seed which you will never reap; to hear loud voices against you or seductive ones, and to find in your own heart the assurance and the spell which makes them vain. Whatever you do, part not with the inner sacred life of the soul whereby we live _within_ to 'things not seen,' to Christ, and truth and immortality. Your work, your activity, belong to earth; no real human interest, nothing that stirs or attracts or that troubles men in this scene of life, ought to be too great or too little for you. But your thoughts belong to heaven; and it is to that height that they must rise, it is _there_ that in solitude and silence they must be rekindled, and enlarged, and calmed, if even activity and public spirit are not to degenerate into a fatal forgetfulness of the true purpose of your calling--a forgetfulness of the infinite tenderness and delicacy, of the unspeakable sacredness, of the mysterious issues, which belong to the ministry of souls."--DEAN CHURCH.
[14] "Habet autem ut obedienter audiatur quantacunque granditate dictionis majus pondus vita dicentis."--ST. AUGUSTINE.
[15] As he has been dead for several years, I need not hesitate to give the name of my dear and honoured friend--the Rev. James Black, of Dunnikier.