Which is true and addressed in the book of Hebrews.
Hebrews 9:24-28 24 For Christ has entered, not into holy places made with hands, which are copies of the true things, but into heaven itself, now to appear in the presence of God on our behalf. 25 Nor was it to offer himself repeatedly, as the high priest enters the holy places every year with blood not his own, 26 for then he would have had to suffer repeatedly since the foundation of the world. But as it is, he has appeared once for all at the end of the ages to put away sin by the sacrifice of himself.
27 And just as it is appointed for man to die once, and after that comes judgment, 28 so Christ, having been offered once to bear the sins of many, will appear a second time, not to deal with sin but to save those who are eagerly waiting for him.
Hebrews 10:1-18 For since the law has but a shadow of the good things to come instead of the true form of these realities, it can never, by the same sacrifices that are continually offered every year, make perfect those who draw near. 2 Otherwise, would they not have ceased to be offered, since the worshipers, having once been cleansed, would no longer have any consciousness of sins? 3 But in these sacrifices there is a reminder of sins every year. 4 For it is impossible for the blood of bulls and goats to take away sins.
5 Consequently, when Christ came into the world, he said, “Sacrifices and offerings you have not desired, but a body have you prepared for me; 6 in burnt offerings and sin offerings you have taken no pleasure. 7 Then I said, ‘Behold, I have come to do your will, O God, as it is written of me in the scroll of the book.’”
8 When he said above, “You have neither desired nor taken pleasure in sacrifices and offerings and burnt offerings and sin offerings” (these are offered according to the law), 9 then he added, “Behold, I have come to do your will.” He does away with the first in order to establish the second. 10 And by that will we have been sanctified through the offering of the body of Jesus Christ once for all.
11 And every priest stands daily at his service, offering repeatedly the same sacrifices, which can never take away sins. 12 But when Christ had offered for all time a single sacrifice for sins, he sat down at the right hand of God, 13 waiting from that time until his enemies should be made a footstool for his feet. 14 For by a single offering he has perfected for all time those who are being sanctified.
15 And the Holy Spirit also bears witness to us; for after saying, 16 “This is the covenant that I will make with them after those days, declares the Lord: I will put my laws on their hearts, and write them on their minds,” 17 then he adds, “I will remember their sins and their lawless deeds no more.” 18 Where there is forgiveness of these, there is no longer any offering for sin.
So what kind of sacrifice does God want from us?
Psalm 51:16-17 For you will not delight in sacrifice, or I would give it; you will not be pleased with a burnt offering. 17 The sacrifices of God are a broken spirit; a broken and contrite heart, O God, you will not despise.
Romans 12:1 I appeal to you therefore, brothers, by the mercies of God, to present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship.
Hebrews 13:15-16 Through him then let us continually offer up a sacrifice of praise to God, that is, the fruit of lips that acknowledge his name. Do not neglect to do good and to share what you have, for such sacrifices are pleasing to God.
There is no need for priests for those kinds of sacrifices, which are really the kind God wants from us.
Wrong. Again.
The English word "priest" is derived from the Greek word presbuteros, which is commonly rendered into Bible English as "elder" or "presbyter." The ministry of Catholic priests is that of the presbyters mentioned in the New Testament (Acts 15:6, 23). The Bible says little about the duties of presbyters, but it does reveal they functioned in a priestly capacity.
They were ordained by the laying on of hands (1 Tm 4:14, 5:22), they preached and taught the flock (1 Tm 5:17), and they administered sacraments (Jas 5:13-15). These are the essential functions of the priestly office, so wherever the various forms of presbuteros appear--except, of course, in instances which pertain to the Jewish elders (Mt 21:23, Acts 4:23)--the word may rightly be translated as "priest" instead of "elder" or "presbyter."
Episcopos arises from two words, epi (over) and skopeo (to see), and it means literally "an overseer": We translate it as "bishop." The King James Version renders the office of overseer, episkopen, as "bishopric" (Acts 1:20). The role of the episcopos is not clearly defined in the New Testament, but by the beginning of the second century it had obtained a fixed meaning. There is early evidence of this refinement in ecclesiastical nomenclature in the writings of Ignatius of Antioch (d. A.D. 107), who wrote at length of the authority of bishops as distinct from presbyters and deacons (Epistle to the Magnesians 6:1, 13:1-2; Epistle to the Trallians 2:1-3; Epistle to the Smyrnaeans 8:1-2).
The New Testament tendency to use episcopos and presbuteros interchangeably is similar to the contemporary Protestant use of the term "minister" to denote various offices, both ordained and unordained (senior minister, music minister, youth minister). Similarly, the term diakonos is rendered both as "deacon" and as "minister" in the Bible, yet in Protestant churches the office of deacon is clearly distinguished from and subordinate to the office of minister.
In Acts 20:17-38 the same men are called presbyteroi (v. 17) and episcopoi (v. 28). Presbuteroi is used in a technical sense to identify their office of ordained leadership. Episcopoi is used in a non-technical sense to describe the type of ministry they exercised. This is how the Revised Standard Version renders the verses: "And from Miletus he [Paul] . . . called for the elders [presbuteroi]of the church. And when they came to him, he said to them . . . 'Take heed to yourselves and all the flock, in which the Holy Spirit has made you guardians [episcopoi], to feed the church of the Lord.'"
In other passages it's clear that although men called presbuteroi ruled over individual congregations (parishes), the apostles ordained certain men, giving them authority over multiple congregations (dioceses), each with its own presbyters. These were endowed with the power to ordain additional presbyters as needed to shepherd the flock and carry on the work of the gospel. Titus and Timothy were two of those early episcopoi and clearly were above the office of presbuteros. They had the authority to select, ordain, and govern other presbyters, as is evidenced by Paul's instructions: "This is why I left you in Crete . . . that you might appoint elders in every town as I directed you" (Ti 1:5; cf. 1 Tm 5:17-22).
From http://www.catholic.com/quickquestions/where-in-the-new-testament-are-priests-mentioned