John Lightfoot on Mark 13:3

[Upon the mount of Olives, over against the Temple.] "The east gate of the Court of the Gentiles had the metropolis Sushan painted on it. And through this gate the high priest went out to burn the red cow." And, "All the walls of that court were high, except the east wall; because of the priest, when he burnt the red cow, stood upon the top of mount Olivet, and took his aim, and looked upon the gate of the Temple, in that time when he sprinkled the blood." And, "The priest stood with his face turned westward, kills the cow with his right hand, and receives the blood with the left, but sprinkleth it with his right, and that seven times, directly towards the Holy of Holies."

It is true, indeed, the Temple might be well seen from any tract of Olivet: but the word over against, if it doth not direct to this very place, yet to some place certainly in the same line: and it cannot but recall to our mind that action of the high priest.