You are apparently mistaking my assertion for an argument. You and I certainly know the difference. That God is sovereign, and entitled to condition His promises however He chooses, and is to be trusted by His creatures regardless how He chooses in the matter, is not intended to be an argument (I mentioned it was non-falsifiable, meaning it cannot qualify as an argument). It is intended as an affirmation arising from a certain specie of faith in God. No one would pretend that it is a matter that can be demonstrated (just as it cannot be demonstrated that one is under obligation to honor his parents or to remain faithful to his wife). That not all have faith is a given, and so I am simply presenting the answer that such would suggest, without the assumption that any will accept it, unless they share like faith.One does not have to be cynical to weigh the value of an argument. A non-falsifiable argument has limited worth: an argument that cannot be demonstrated to be false, also cannot be demonstrated to be true.
As for the my observation that, though God is said to feed the birds, there also comes a point when each bird must die (bringing an end to this providential care)—I think this to be self-evident. If another wishes to present the contrary case, I would be very interested in reading how this is done.
I would also be fascinated to read the case for the idea that God's promises of temporal care are not intended to have a cut-off point (i.e., at the appropriate time of death of an individual).
I have made affirmations above that arise from the kind of faith in God that I choose to live by (and have done so for 40 years, without disillusionment). If I am not mistaken, it was also the faith by which the prophets and the apostles lived—and apparently Jesus as well, since He was not sure whether the general promises of protection (e.g., Psalm 34:7; 91:11-12) would accord with the will of His Father or not, in Gethsemane (Luke 22:42).
If others do not find these (seemingly obvious) affirmations to be self-evident, I will leave them to reach their own conclusions to the contrary. I fear, however, that, by adopting false expectations, they will be setting themselves up for unnecessary disappointment, and find that they are living in a naive world of theological fantasy—and may (like too may before them) wrongfully blame God for their disillusionment.