Here's the post I was looking for: a reminder that God gives us ample grace to deal with what he gives us each day, but he doesn't necessarily give us "spare grace" to cover all of the situations we conjure up and then spend time worrying about.
Which leads to a whole 'nother discussion about how to cast our fears on the Lord, because he cares for us, how not to be anxious about anything ... how much easier said than done, what an exercise of faith that is. An exercise of embracing what (ample) grace is available to us here and now.
It reminds me of a Sandra McCracken song, "Grace Upon Grace:"
in every station new trials and troubles
call for more grace than I can afford
where can I go but to my dear Savior
and mercy that pours from boundless stores
grace upon grace every sin repaired
every void restored, you will find him there
in every turning he will prepare you
with grace upon grace
I think I'll be listening to this on "repeat" today.
Finally, in closing, here's some sort-of-related words to a hymn we sang yesterday morning at church, "This is my Father's World:"
This is my Fathers world, oh let me neer forget that though the wrong seems oft so strong, God is the ruler yet. This is my Fathers world, the battle is not done. Jesus, who died, shall be satisfied and earth and heaven be one