A depressed person can feel down and out, gloominess and little hope can reign in their life. But God says in darkness He brings light and hopefulness and strength. Psalm 139 talks of how well He knows us. I’ve memorized this passage in my life several years ago when a big disappointment hit my life but I hadn’t taken to heart the two comforting ending verses. Here they are:
11 If I say, “Surely the darkness will hide me
and the light become night around me,”
12 even the darkness will not be dark to you;
the night will shine like the day,
for darkness is as light to you.
Here are the preceding verses:

1 You have searched me, LORD,
and you know me.
2 You know when I sit and when I rise;
you perceive my thoughts from afar.
3 You discern my going out and my lying down;
you are familiar with all my ways.
4 Before a word is on my tongue
you, LORD, know it completely.
5 You hem me in behind and before,
and you lay your hand upon me.
6 Such knowledge is too wonderful for me,
too lofty for me to attain.
7 Where can I go from your Spirit?
Where can I flee from your presence?
8 If I go up to the heavens, you are there;
if I make my bed in the depths, you are there.
9 If I rise on the wings of the dawn,
if I settle on the far side of the sea,
10 even there your hand will guide me,
your right hand will hold me fast.
11 If I say, “Surely the darkness will hide me
and the light become night around me,”
12 even the darkness will not be dark to you;
the night will shine like the day,
for darkness is as light to you.