With a little reverse engineering, we can see an absolutely amazing revelation!
Psalms:
78:1 Give ear, O my people, to MY LAW: incline your ears to the words of MY MOUTH.
78:2 I will open MY MOUTH in a parable: I will utter dark sayings of old:
Matthew:
13:34 All these things SPAKE JESUS unto the multitude in parables; and without a parable spake He not unto them:
13:35 That it might be fulfilled which was spoken by the prophet, saying, I will open MY MOUTH in parables; I will utter things which have been kept secret from the foundation of the world.
You see, Earburner, the OT God Who spoke by
HIS MOUTH the Ten Commandments at Sinai is the same OT God who promised to come and open
HIS MOUTH in parables to His people -
JESUS. Therefore, the same Ten Commandments that He uttered at Mount Sinai is the same commandments to which Jesus refers when saying, "If ye love Me, keep My commandments."