I think the very hardest thing in Christianity is to hold onto one’s faith in all God’s actions. That whatever happens, even exceedingly bad things, “We must believe,” writes Mark Rushdoony, “that God is good.”
Yes, that’s hard. When we lose our loved ones, that’s hard. When we see the ungodly and the wicked running wild (Psalm 73), while the righteous can hardly get from day to day, that’s hard.
So we need to say, as Abraham said, “Shall not the judge of all the earth do right?” (Genesis 18:25). Abraham earnestly wished God to spare the city of Sodom, for his nephew Lot’s sake, who lived there; but he was prepared to believe in the righteousness of any step God chose to take.
That’s hard. It requires a degree of humility that doesn’t come natural to us.
We can start by praying for it.