Hebrews 8:4-6,13 "If he were on earth, he would not be a priest, for there are already men who offer the gifts prescribed by the law. They serve at a sanctuary that is a copy and shadow of what is in heaven. This is why Moses was warned when he was about to build a tabernacle,"See to it that you make everything according to the pattern shown to you on the mountian." But the ministry Jesus has recieved is as superior to theirs as the covenant of which he is mediator is superior to the old one, and it is founded it on better promises. For if there had been nothing wrong with that first covenant, no place would have been sought for another. But God found fault with the people. ..By calling this covenant,"new, he has made the first one obsolete; and what is obsolete and aginf will soon disappear." God doesn't need Jesus to live on the eath and perform the duties of a priest on earth- there are people on earth that already did that. He needs Christ in h eaven wi...