'As a preacher Gilmour was most unconventional. His sermons were direct talks, without any attempt at rhetoric. They were plentifully illustrated, largely from events in his own experience. Laughable allusions or quaint ways of putting things were frequently used. While there was not much attractive in the manner of the preacher, the directness of his remark and his evident earnestness always made his sermons appreciated and enjoyed. The Chinese were always glad to hear him, and words he used to speak are often referred to.'
Writing on one occasion to a friend in England being educated for the Christian ministry, who had just taken one of the higher degrees at the London University, he said:—
'I don't think our work is so much unlike, after all. You witness for Christ, so do I; and though you are in a Christian country and I in a heathen land, human nature is human nature, and not so different as might be supposed. You may, pray you may, see more fruit of your work than I do, but your trials, and difficulties, and temptations will be, no doubt are, pretty much the same as mine. May the Lord help you and bless you now and for ever! I hope He will help you to have ever a heart ready to preach simply the simple Gospel to your hearers, half of whom, perhaps, know almost nothing of salvation, though they have been listening to sermons about it all their lives, and would not know in the least to which hand to turn if they were aroused and became anxious to be saved. I'll give you a text, which I think peculiarly suitable for you, now a graduate. Isaiah 1. 4—"The Lord God hath given me the tongue of the learned, that I should know how to speak a word in season to him that is weary." I like to dwell on this text. Learning should not make deep sermons, hard to be understood; on the contrary, it should be all employed to make the road simple and clear. Forgive me for exhorting you so, but I can't refrain from it when I think of the many learned men I know at home and here who employ their learning in giving learned sermons, not in making the way simple and plain.'
The sermon referred to in the extract quoted above from the diary is based on Matt. i. 21. It was never written out; but the notes of it lie before us, and we quote them as an illustration of his way of addressing both Chinese and English audiences. It may interest the reader to endeavour to make out from it the line of thought, and any who may have heard him preach or speak will find it easy to recall how he preached it.
'Matt. i. 21. 'He shall save people from their sins.'
'Talk to a man, he admits he is sinner; by-and-by he will break off and become good.
'He does not really know what sin is. Egypt!
'It is a disease; if you get it can you leave it off? Your blood is tainted.
'It is a fire; once light it, you can't quench it, it smoulders and breaks out afresh.