God assures us of His caring presence even in the midst of our darkest days.

If I say, “Surely the darkness shall cover me, and the light about me be night,” even the darkness is not dark to you; the night is bright as the day, for darkness is as light with you.
13 For you formed my inward parts; you knitted me together in my mother's womb. 14 I praise you, for I am fearfully and wonderfully made. Wonderful are your works; my soul knows it very well. (Psalm 139:11-14)