Albert Barnes on Luke 14:12

Call not thy friends, &c. This is not to be understood as commanding us not to entertain at all our relatives and friends; but we are to remember the design with which our Lord spoke. He intended, doubtless, to reprove those who sought the society of the wealthy, and particularly rich relatives, and those who claimed to be intimate with the great and honourable, and who, to show their intimacy, were in the habit of seeking their society, and making for them expensive entertainments. He meant, also, to commend charity shown to the poor. The passage means, therefore, call not only your friends, but call also the poor, &c. Comp. Ex 16:8, 1Sam 15:22, Jer 7:22,23 Mt 9:13.

Thy kinsmen. Thy relations.

A recompense. Lest they feel themselves bound to treat you with the same kindness, and, in so doing, neither you nor they will show any kind spirit, or any disposition to do good beyond what is repaid.

(f) "nor thy rich" Prov 22:16