shut so that he cannot enter in. God does not call on men to break, disregard, or be unfaithful to existing obligations. When it is his pleasure that they should enter into a new branch of his service, he sets before them on open door, which no man can shut. When these three things exist in the case of any man of God, I think he may regard his call as complete. If he desires to be engaged in the work, with a constraining, considerate, disinterested > earnest, abiding desire; if he possesses the qualifi- cations described by the apostle; if full opportunity has been afforded him, then he may regard himself as not only really and truly, but fully and completely, called of God to the ministry of the word. He not only may go forward, but it is at his peril that he holds back. Let him submit the evidences of his call to the elders of the church-; it then becomes their duty, being satisfied of its validity, to ordain him to the work of the ministry, and to certify him to the church and to the world as one called of God. He can go forth claiming the promises and rejoicing in his work. And here I ask your attention to the following earnest words from an "Address to Students of Divinity," by the famous John Brown, of Hadding- ton. I find it prefixed to his "System of Theology,"