Which hath not drawn in the yoke — A fit representative of the murderer, in whose stead it was killed, who would not bear the yoke of God's laws. A type also of Christ, who was under the yoke, but what he had voluntarily taken upon himself.
Related Commentaries of Deuteronomy 21:3
Deuteronomy 21:3
3 And it shall be, that the city which is next unto the slain man, even the elders of that city shall take an heifer, which hath not been wrought with, and which hath not drawn in the yoke;