An Exposition of Matthew 11 vs 28, Come unto Me all ye that Labour by Thomas Boston and published by Classics.
Thomas Boston writes “Come to Christ, then, O sinners, upon this his invitation, and sit not his blessed call.—To enforce this, I urge these four motives.
1. There is a fullness in him, all power is given him; want what you will, he has a power to give it to you; the Son of Man had power, even on earth, to forgive sins. Grace without you, or grace within you, he is the dispenser of all. John 1:16, “And of his fullness have all we received, and grace for grace.” He is the great Secretary of heaven, the keys hang at his girdle; he shuts, and none can open; he opens, and none can shut.—Consider,
2. You are welcome to it. He has it not to keep up, but to give out, and to whom but to needy sinners? Even the worst of you are welcome, if you will take it out of his own hand: “If any man thirst,” says he, “let him come to me, and drink,” John 7:37.
3. Would you do Christ a pleasure? then come to him, Isaiah 53:11, “He shall see of the travail of his soul, and shall be satisfied."Would you content and ease his heart? then come. It is a great ease to full breasts to be sucked. The breasts of his consolations are full, hear how pressingly he calls you to suck. “Eat, O friends! drink, yea, drink abundantly, O beloved!”
4. Would you fall in with the designs of the Father's and the Son's love, in the mystery of salvation? then come to him. Why is a fountain opened, but that ye may run to it, and wash? Seal not, shut not that to yourselves, which God and Christ have opened.”