Psalm 78:2
"I will open my mouth in a parable: I will utter dark sayings of old:"
Cross References (ranked by relevance)
Mark 4:34
But without a parable spake he not unto them: and when they were alone, he expounded all things to his disciples.
Psalm 49:4
I will incline mine ear to a parable: I will open my dark saying upon the harp.
Proverbs 1:6
To understand a proverb, and the interpretation; the words of the wise, and their dark sayings.