William Burkitt on Luke 14:12

Observe here, that it is not an absolute denial of calling brethren and kinsfolk, and rich neighbors: but Christ forbids the bidding of them alone, and requires that the poor be refreshed at or from our table: for when the rich feast one another, and let the poor fast and pine; this is very sinful.

Accordingly our Saviour, observing how the Pharisee that bade him to dinner, invited only the rich, overlooking and neglecting the poor, he exhorts him and the company, that whenever they make entertainments for the time to come, they should not only invite their rich neighbors, and friends. Who can and will invite them again; but remember the poor.

Here note,

1. That civil courtesies, and hospitable entertainments of kindred and friends, for maintaining and preserving love and concord, is not only lawful, but an expedient and necessary duty; Use hospitality one to another (says St. Peter) without grudging.

2. That though it be not unlawful to invite and feast the rich, yet it is most acceptable to God when we feed and refresh the poor: When thou makest a feast call rather the poor, and thou shalt be blessed. We must prefer the duties of Christian charity before the acts of common civility: blessed are those feast makers, who make the bowels of the hungry to bless them.

3. That God often times rewards our liberality to the poor very signally in this life; but if it be deferred, we shall not fail to receive it at the resurrection of the just: The poor cannot recompense thee, but thou shalt be recompensed at the resurrection of the just.