Apparently people like to trot out Isaiah 58 whenever the Mormon church decides their members need to fast. What really needs to happen is that the leadership needs to repent.
Isaiah 58:3
Why, when we fast, do you not notice?
We afflict our bodies and you remain indifferent!
Gileadi Translation (the best one in the world)
Let me get this straight, the rank and file LDS members are supposed to fast for 2 meals and donate the proceeds to the church in an effort to end the Corona virus? Their is a better chance that the Easter Bunny is real.
GOD is not going to honor a fast that He did not ask for. He is not going to reward a church for taking in more hard earned money from its members in an effort to look good to the rest of the world. I think the ship sailed on that one after the 100 billion dollar stock fund. It looks like there are still some fools left on the Titanic.
If you want to fast and donate the money to an actual charity, or better yet give it to a needy person, then GOD might bless you individually, depending on your personal motives. You do not even have to fast, just help someone and keep it to yourself.
GOD does not need a middleman to take your money. You should not trust that the middleman will give it to the poor (after taking his cut).
GOD needs you to pull your head out of your butt and help people directly without drawing attention to yourself.