You may be depressed because you're deep-down angry about something without really expressing that anger. If so, once you confess your anger to God and pray for deliverance from it you will feel a lot better.

If you don't feel any anger about anything on the surface, you may have to pray and ask God to show you what you're angry about. After you pray, he may bring something to mind that you're still deep-down angry about.

You may be unwilling to admit what you're angry about because it's something so petty when you really look at it, or something so big you're afraid to admit it, like being angry with God himself for him letting something bad happen to you.

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From Depression To Joy

"God is not in all his thoughts" (Psalm 10:4).

"Commit thy works unto the LORD, and thy thoughts shall be established" (Proverbs 16:3).

"Thou wilt keep him in perfect peace, whose mind is stayed on thee: because he trusteth in thee" (Isaiah 26:3).

"Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God. And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus" (Philippians 4:6-7).

"In thy presence is fulness of joy" (Psalm 16:11).