THE great and main object of the gospel preaching and gospel practice, is a coming to Christ. It is the first article in Christianity, according to John 5:40, “Ye will not come to me, that ye might have life.” It is the connecting chain, 1 Pet. 2:4, “To whom coming as unto a living stone, ye also as lively stones are built up,” &c. And it is the last exercise of the Christian; for when finishing his warfare, the invitation is, Matth. 25:34, “Come, ye blessed of my Father, inherit the kingdom prepared for you.” It is virtually the all which God requireth of us: John 6:29, “This is the work of God, that ye believe on him whom he hath sent.”
Thomas Boston, The Whole Works of Thomas Boston, Volume 9: Sixty-Six Sermons, “Christ’s Invitation” ed. Samuel M‘Millan (Aberdeen: George and Robert King, 1851), 169.