What skill doth every part of our work require! – and of how much moment is every part! To preach a sermon, I think, is not the hardest part; and yet what skill is necessary to make the truth plain; to convince the hearers, to let irresistible light in to their consciences, and to keep it there, and drive all home; to screw the truth into their minds, and work Christ into their affections; to meet every objection, and clearly to resolve it; to drive sinners to a stand, and make them see that there is no hope, but that they must unavoidably either be converted or condemned – and to do all this, as regards language and manner, as beseems our work, and yet as is most suitable to the capacities of our hearers. This, and a great deal more that should be done in every sermon, must surely require a great deal of holy skill.