'On Earth' in the Bible

Now were he on earth, he would not even be a priest, since there are here those who present the gifts according to the Law??5 those priests who serve a mere outline and shadow of the heavenly reality, just as Moses was divinely instructed when he was about to build the Tabernacle. "See", he says, "that you make everything on the pattern showed you on the mountain."

See that you do not refuse him who is speaking. For if they did not escape punishment when they refused to listen to their instructor on earth, much less shall we escape if we turn away from him who is teaching us from heaven;