I. – A man's interest in Christ may be known
First, That a man’s interest in Christ, or his gracious state, may be known, and that with more certainty than people conjecture; yea, and the knowledge of it may be more easily attained unto than many imagine; for not only has the Lord commanded men to know their interest in Him, as a thing attainable – ‘Examine yourselves, whether ye be in the faith’ (2 Cor. 13:5); ‘Give diligence to make your calling and election sure’ (2 Peter 1:10) – but many of the saints have attained unto the clear persuasion of their interest in Christ, and in God as their own God. How often do they call Him their God and their portion? and how persuaded is Paul ‘that nothing can separate him from the love of God?’ (Rom. 8:38, 39.) Therefore the knowledge of a man’s gracious state is attainable. And this knowledge of it, which may be attained, is no fancy and mere conceit, but it is most sure: ‘Doubtless Thou art our Father,’ saith the prophet (Isa. 43:16), in the name of the Church. It is clear from this:--1. That can be no fancy, but a very sure knowledge, which does yield to a rational man comfort in most real straits; but so does this--'When the people spoke of stoning David, he encouraged himself in the Lord his God.' (1 Sam. 30: 6.) He saith, 'He will not be afraid though ten thousands rise up against him.' (Psa. 3: 6.) Compare these words with the following: 'But Thou, O Lord, art a shield for me; my glory, and the lifter up of mine head.' (Psa. 3: 3.) 'The Lord is my light, and my salvation, whom shall I fear? The Lord is the strength of my life, of whom shall I be afraid? Though an host should encamp against me, my heart shall not fear; though war should rise against me, in this will I be confident.' (Psa. 27: 3.) 2. That is a sure knowledge of a thing which maketh a wise merchant sell all he has, that he may keep it sure; that maketh a man forego children, lands, life, and suffer the spoiling of all joyfully; but so does this--Matt. 13: 44; Mark 10: 28, 29; Heb. 10: 34; Rom. 5: 3; Acts 5: 41. 3. That must be a sure and certain knowledge, and no fancy, upon which a man voluntarily and freely does adventure his soul when he is stepping into eternity, with this word in his mouth, 'This is all my desire' (2 Sam. 23: 5); but such a knowledge is this. And again, not only may a godly man come to the sure knowledge of his gracious state, but it is more easily attainable than many apprehend: for supposing, what shall be afterwards proved, that a man may know the gracious work of God's Spirit in himself; if he will but argue rationally from thence, he shall be forced to conclude his interest in Christ, unless he deny clear Scripture truths. I shall only make use of one here, because we are to speak more directly to this afterwards. A godly man may argue thus, Whosoever receive Christ are justly reputed the children of God--'But as many as received Him, to them gave He power to become the sons of God' (John 1 12); but I have received Christ in all the ways which the word there can import: for I am pleased with the device of salvation by Christ, I agree to the terms, I welcome the offer of Christ in all His offices, as a King to rule over me, a Priest to offer sacrifice and intercede for me, a Prophet to teach me; I lay out my heart for Him and towards Him, resting on Him as I am able. What else can be meant by the word "receiving"? Therefore may I say, and conclude plainly and warrantably, I am justly to reckon myself God's child, according to the aforesaid scripture, which cannot fail.