2. What is the qualification required in those that shall be welcome—they must thirst. All shall be welcome to gospel grace upon those terms only that gospel grace be welcome to them. Those that are satisfied with the world and its enjoyments for a portion, and seek not for a happiness in the favour of God,—those that depend upon the merit of their own works for a righteousness, and see no need they have of Christ and his righteousness,—these do not thirst; they have no sense of their need, are in no pain or uneasiness about their souls, and therefore will not condescend so far as to be beholden to Christ. But those that thirst are invited to the waters, as those that labour, and are heavy-laden, are invited to Christ for rest. Note, Where God gives grace he first gives a thirsting after it; and, where he has given a thirsting after it, he will give it, Ps. lxxxi. 10.