“Provide for his own” and Jesus’ law of love

Of course caring for our own children is to be reciprocated by our children when their parents grow old. These fundamental familial duties are commanded by God as the first obligations of the Second Table of the Law. Yes, without obedience to these first fundamental duties of the law of love, no other fulfillment of that law will ever be honored, nor even likely to be sincere.

But where are the harder parts of the Second Table of the Law which extend far, far beyond “providing for our own” ever expounded by our conservative Christian influencers? Why do such men never speak or preach commands of Jesus in this vein:

But when you give a banquet, invite the poor, the crippled, the lame, the blind, and you will be blessed, since they do not have the means to repay you; for you will be repaid at the resurrection of the righteous.