To read the texts click on the texts: Rom 11:29-36; Lk 14:12-14
In the context of the meal to which Jesus was invited and in which he noticed how guests chose places of honour, the Lucan Jesus directs these verses to the host.
The challenge in these verses is that the host not invite others in order to gain a private advantage. The four groups that one must not invite (friends, brothers, relatives and rich neighbours) are balanced by the four groups that one must dare to invite (the poor, the crippled, the lame and the blind). The point of inviting the latter group is that they will not be able to repay the favour. The reward or repayment for such an act will come from God himself.
If we understand that unconditional love means expecting nothing in return from the person that one loves, then we can understand what Jesus is inviting us to in the text of today. However, many of us like to keep a record of the right that we have done for others so that they might do the same for us. Our relationships are built on barter rather than love.