"Why are you cast down, O my inner self? And why should you moan over me and be disquieted within me? Hope in God and wait expectantly for Him, for I shall yet praise Him, my Help and my God" (Ps. 42:5).

Does your inner man ever feel cast down? Sometimes mine does. So did David's.

When he felt that way, when his soul was moaning and disquieted within him, David put his hope in God and waited expectantly for Him, praising Him as his Help and his God.

This must have been an important issue with David because in verse 11 of that same Psalm he repeated almost the same words:
Why are you cast down, O my inner self? And why should you moan over me and be disquieted within me? Hope in God and wait expectantly for Him, for I shall yet praise Him, Who is the help of my countenance, and my God.
David knew that when he got down, his countenance went down with him. That is why he talked to himself, his soul (mind, will, and emotions), and encouraged and strengthened himself in the Lord (1 Sam. 30:6).

When we find ourselves in that same depressed state—we should wait expectantly for the Lord, praise Him Who is our Help and our God, and encourage and strengthen ourselves in Him.

We who are righteous—in rightstanding with God—by believing in Jesus Christ, we who take refuge and put our trust in the Lord can sing and shout for joy! The Lord makes a covering over us and defends us He fights our battles for us when we praise Him! (2 Chron. 20:17,20-21).

Source: Help Me, I'm Depressed! by Joyce Meyer
Excerpt permission granted by Harrison House Publishers