David used oil and butter as similes to describe the smoothness and softness of the speech of his former friend. Those soft words were swords. The former friend betrayed him, and sought his destruction. He now casts that burden on the LORD, and trusts that the LORD will sustain him in the battle. Whatever we face, we can cast our anxieties on the LORD, because he cares for us.
LORD, here are our troubles. Please take them. They are too heavy for us.
Psalm 55
2 Chronicles 28
Psalm 54
2 Chronicles 27
Psalm 53
2 Chronicles 26
Psalm 52
2 Chronicles 25
Psalm 51
2 Chronicles 24