12: Then said he also to him that bade him, When thou makest a dinner or a supper, call not thy friends, nor thy brethren, neither thy kinsmen, nor thy rich neighbours; lest they also bid thee again, and a recompence be made thee. 13: But when thou makest a feast, call the poor, the maimed, the lame, the blind: 14: And thou shalt be blessed; for they cannot recompense thee: for thou shalt be recompensed at the resurrection of the just.

On the surface this illustration by Jesus concerns physical food and sharing our physical food with those who have none and cannot physically repay us. Thus, this acted parable concerns spiritual food and sharing our spiritual food with those who have none and cannot repay us. Our spiritual food would of course be the knowledge we have of God’s Word or the Bible. Those we are to share our knowledge with are the spiritually poor, spiritually maimed, spiritually lame and spiritually blind.

Spiritually Poor – no knowledge of the Bible
Spiritually Maimed – not able to obey the instruction of the Bible
Spiritually Lame – actions not in harmony with the Bible
Spiritually Blind – does not understand the Bible

So Jesus is telling us that we are to share our knowledge of the Bible with four classes of people:

Those who have no knowledge of the Bible
Those who have been spiritually deceived by false doctrines and do not know the truth and so cannot obey it.
Those whose actions are not in harmony with Bible instructions.
Those who do not understand the Bible when they read it.

Just as physically poor people cannot repay us for physical food, those who are spiritually poor cannot repay us for the spiritual food we give them, but Jesus can and He will at the Resurrection of the Just. Our spiritual friends, spiritual brethren, spiritual kinsmen and spiritual rich neighbors all represent people who are in the Church and already have a knowledge of the Bible. If we just share our spiritual food or knowledge of the Bible with them instead of sharing with people who have little or no knowledge of the Bible and who are hungry for the Word, we will not have the blessing of Jesus and many people will be lost.