(Devarim 33:10) "They shall teach Your judgments to Jacob": We are hereby taught that all rulings are by their mouths, as it is written (Ibid. 21:5) "And by their word shall every contention and every plague-spot be (ruled upon.)" "contention": These are contentions involving the (red) heifer, and sotah, and the heifer (of the broken neck). "plague-spot": those of men, houses, and garments.
"and Your Torah to Israel": Agnitis, the general, asked R. Gamliel: How many Toroth were given to Israel. He answered: Two, one written; the other oral.
"They shall place incense before You": This is the inner incense. "and a burnt-offering upon your altar": These are the limbs of the burnt-offering.