I challenge you to reread James 1 and 2 as a continuous thought.
"25 But one who looks intently at the perfect law, the law of liberty, and abides by it, not having become a forgetful hearer but an effectual doer, this man will be blessed in what he does." (James 1:25 NASB)
"8 If, however, you are fulfilling the royal law according to the Scripture, “You shall love your neighbor as yourself,” you are doing well." (James 2:8 NASB)
"12 So speak and so act as those who are to be judged by the law of liberty." (James 2:12 NASB)
The 'law of liberty' IS 'love your neighbor as yourself'. But I know this is hard to accept in a church that has been thoroughly misled and indoctrinated about the role of law in this New Covenant. You have on one side those who think it continues according to every jot and tittle, and you have on the other side those who think it has utterly disappeared completely. By faith we uphold the royal law of scripture, 'love your neighbor as yourself'. We uphold this new law, which is really an old law (as John puts it) in the new way of faith:.
"31 Do we, then, nullify the law by this faith? Not at all! Rather, we uphold the law." (Romans 3:31 NIV1984)
"The only thing that counts is faith expressing itself through love." (Galatians 5:6 NIV1984)
"13 You, my brothers, were called to be free. But do not use your freedom to indulge the sinful nature; rather, serve one another in love. 14 The entire law is summed up in a single command: “Love your neighbor as yourself.” (Galatians 5:13-14 NIV1984)
What has 'disappeared' are the literal first covenant worship requirements. The people of God are now in covenant through faith in a new and different Sacrifice, Priesthood, and Temple. One not governed by the timetables and procedures of first covenant sacrifice, priesthood, and temple.
I would politely disagree that the first covenant worship requirements have disappeared. I would submit that they have changed...
The Priesthood has changed from Levitical (Aaronical) to Melchisidec...
Heb 7:12 For the priesthood being changed, there is made of necessity a change also of the law.
Heb 7:13 For he of whom these things are spoken pertaineth to another tribe, of which no man gave attendance at the altar.
Heb 7:14 For it is evident that our Lord sprang out of Juda; of which tribe Moses spake nothing concerning priesthood.
Heb 7:15 And it is yet far more evident: for that after the similitude of Melchisedec there ariseth another priest,
Is this the first time the Prieshood changed? NO! Simply read the first ten verses of this chapter and we see that it was a Melchisidec Priesthood to begin with...
Heb 7:1 For this Melchisedec, king of Salem,
priest of the most high God, who
met Abraham returning from the slaughter of the kings, and blessed him;
Here was the Priest, Melchisidec (The Word who became Jesus Christ) meeting Abraham to collect tithes.
Heb 7:2 To whom also Abraham gave a tenth part of all; first being by interpretation King of righteousness, and after that also King of Salem, which is, King of peace;
Heb 7:3 Without father, without mother, without descent, having neither beginning of days, nor end of life; but made like unto the Son of God; abideth a priest continually.
Heb 7:4 Now consider how great this man was, unto whom even the patriarch Abraham gave the tenth of the spoils.
Heb 7:5 And verily they that are of the sons of Levi, who receive the office of the priesthood, have a commandment to take tithes of the people according to the law, that is, of their brethren, though they come out of the loins of Abraham:
Heb 7:6 But he whose descent is not counted from them received tithes of Abraham, and blessed him that had the promises.
Heb 7:7 And without all contradiction the less is blessed of the better.
Heb 7:8 And here men that die receive tithes; but there he receiveth them, of whom it is witnessed that he liveth.
Heb 7:9 And as I may so say, Levi also, who receiveth tithes, payed tithes in Abraham.
Heb 7:10 For he was yet in the loins of his father, when Melchisedec met him.
So, after bringing His people out of Egypt, Christ (read 1 Cor 10:1-4) Christ delegated the Priesthood to the sons of Aaron of the tribe of Levi. This was not a permanent delegation as we see in Heb 7:11-17.
Has the need for sacrifice disappeared?
Heb 7:26 For such an high priest became us, who is holy, harmless, undefiled, separate from sinners, and made higher than the heavens;
Heb 7:27 Who needeth not daily, as those high priests, to offer up sacrifice, first for his own sins, and then for the people's: for this he did once, when he offered up himself.
Heb 7:28 For the law maketh men high priests which have infirmity; but the word of the oath, which was since the law, maketh the Son, who is consecrated for evermore.
Nope, every sin requires blood...
Heb 9:7 But into the second went the high priest alone once every year, not without blood, which he offered for himself, and for the errors of the people:
Heb 9:8 The Holy Ghost this signifying, that the way into the holiest of all was not yet made manifest, while as the first tabernacle was yet standing:
Heb 9:9 Which was a figure for the time then present, in which were offered both gifts and sacrifices, that could not make him that did the service perfect, as pertaining to the conscience;
Heb 9:14 How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God?
Heb 9:15 And for this cause he is the mediator of the new testament, that by means of death, for the redemption of the transgressions that were under the first testament, they which are called might receive the promise of eternal inheritance.
Heb 7:27 Who needeth not daily, as those high priests, to offer up sacrifice, first for his own sins, and then for the people's: for this he did once, when he offered up himself.
So, when we sin, what do we do? We ask that Christ's sacrifice be accepted in our stead. His blood replaces our blood as the requirement for sin...
Heb 9:14 How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God?
We can claim that sacrifice every time we slip and fall.
If one reads the book of Hebrews we find that the prescription has not changed, the Preisthood has and so has the Sacrifice, but the 'method', if you will, is still the same. This is alluded to in Hebrews...
Heb 9:1 Then verily the first covenant had also ordinances of divine service, and a worldly sanctuary.
Heb 9:2 For there was a tabernacle made; the first, wherein was the candlestick, and the table, and the shewbread; which is called the sanctuary.
Heb 9:3 And after the second veil, the tabernacle which is called the Holiest of all;
Heb 9:4 Which had the golden censer, and the ark of the covenant overlaid round about with gold, wherein was the golden pot that had manna, and Aaron's rod that budded, and the tables of the covenant;
Heb 9:5 And over it the cherubims of glory shadowing the mercyseat; of which we cannot now speak particularly.
Heb 9:6 Now when these things were thus ordained, the priests went always into the first tabernacle, accomplishing the service of God.
Heb 9:7 But into the second went the high priest alone once every year, not without blood, which he offered for himself, and for the errors of the people:
Heb 9:8 The Holy Ghost this signifying, that the way into the holiest of all was not yet made manifest, while as the first tabernacle was yet standing:
Heb 9:9 Which was a figure for the time then present, in which were offered both gifts and sacrifices, that could not make him that did the service perfect, as pertaining to the conscience;
Heb 9:10 Which stood only in meats and drinks, and divers washings, and carnal ordinances, imposed on them until the time of reformation.
Heb 9:11 But Christ being come an high priest of good things to come, by a greater and more perfect tabernacle, not made with hands, that is to say, not of this building;
Heb 9:12 Neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eternal redemption for us.
Heb 9:13 For if the blood of bulls and of goats, and the ashes of an heifer sprinkling the unclean, sanctifieth to the purifying of the flesh:
Heb 9:14 How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God?
Now we see that Moses made all things according to the pattern of what is in heaven. God revealed that to Him...
Heb 8:1 Now of the things which we have spoken this is the sum: We have such an high priest, who is set on the right hand of the throne of the Majesty in the heavens;
Heb 8:2 A minister of the sanctuary, and of the true tabernacle, which the Lord pitched, and not man.
Heb 8:3 For every high priest is ordained to offer gifts and sacrifices: wherefore it is of necessity that this man have somewhat also to offer.
Heb 8:4 For if he were on earth, he should not be a priest, seeing that there are priests that offer gifts according to the law:
Heb 8:5 Who serve unto the example and shadow of heavenly things, as Moses was admonished of God when he was about to make the tabernacle: for, See, saith he, that thou make all things according to the pattern shewed to thee in the mount.
Christ did not come to do away with the Priesthood or the Temple worship, He changed it, basically He reset it, to the Melchisidec Priesthood method of worship. The Levitical (Aaronical) Priesthood was a physical pattern with physical appurtenances of the Melchisidec Priesthood that was, is and ever will be in Heaven.