Psalm 10: The Cry of the Oppressed
The definition of lament is: "a passionate expression of grief or sorrow."

Verse 14 says, "Lord, I know you see all that they’re doing,
noting their each and every deed.
You know the trouble and turmoil they’ve caused.
Now punish them thoroughly for all that they’ve done!
The poor and helpless ones trust in you, Lord,
for you are famous for being the helper of the fatherless.
I know you won’t let them down."

Dear shepherd leader, both Psalms 9 and 10 show David's full and complete confidence in the Father. David knew that just because he couldn't see God working didn't mean He wasn't.