Numbers 19:2 - Wesley's Explanatory Notes

Red — A fit colour to shadow forth the bloody nature of sin, and the blood of Christ, from which this water and all other rites had their purifying virtue. No blemish — A fit type of Christ. Upon which never came yoke — Whereby may be signified, either that Christ in himself was free from all the yoke or obligation of God's command, till for our sakes he put himself under the law; or that Christ was not forced to undertake our burden and cross, but did voluntarily chuse it. He was bound and held with no other cords but those of his own love.