Here we have the grand motive used by the apostle to excite their charity, namely, the example of Christ, who impoverished himself to enrich us, and emptied himself to fill us; therefore should we be ready to administer unto others: Ye know the grace of our Lord Jesus Christ &c.
Observe hence, 1. A description of Christ in his divine nature, as God: He was originally, essentially, and eternally rich; that is, in his God-head. All the riches that Christ now has in his state of exaltation, he had from all eternity; before his humiliation, with respect to his divine nature, he was rich.
Observe, 2. A description of Christ in his human nature, he became poor; that is, in the day of his incarnation, when he assumed our flesh, and was made manifest in our nature, he impoverished himself though he was rich, yet he became poor.
Observe, 3. The persons for whose sake he did thus impoverish himself: For our sakes he became poor, that we through his poverty might be rich.
Observe, 4. The moving, impelling, or impulsive cause of this condescension in Christ, and that was the graciousness of his nature: Ye know the grace of our Lord Jesus Christ.
Observe, 5. The use and improvement which the apostle makes of this gracious dignation and condescension in Jesus Christ, and that was by way of argument, to excite the believing Corinthians to exercise their charity towards the poor saints which were at Jerusalem.
Learn from hence, That the extensive charity and wonderful compassion of Christ towards us sinners, has both the force of an argument to excite us to, and also the nature of a rule to direct us in, the exercise of our charity towards all our fellow-brethren and members of Christ; Ye know the grace of our Lord Jesus Christ, &c.