Whatever my lot, Thou has taught me to say,Notice the present tense - it is well with my soul. Not it will be well. Not it used to be well. But it is well. That is the faith we ought to have in a providential God, even in the midst of pain.
It is well, it is well, with my soul.
(Horatio Spafford, 1873)
And if you don't know the painful context that birthed the words to that now-famous hymn, then click here.