Of the Sacraments/ordinances of the New Covenant listen here
1. Baptism is an ordinance of the New Testament, ordained by Jesus Christ, to be unto the party baptized, a sign of his fellowship with him, in his death and resurrection; of his being engrafted into him; of remission of sins; and of giving up into God, through Jesus Christ, to live and walk in newness of life. ( Romans 6:3-5; Colossians 2;12; Galatians 3:27; Mark 1:4; Acts 22:16; Romans 6:4 )
2. Those who do actually profess repentance towards God, faith in, and obedience to, our Lord Jesus Christ, are the only proper subjects of this ordinance. ( Mark 16:16; Acts 8:36, 37; Acts 2:41; Acts 8:12; Acts 18:8 )
3 The outward element to be used in this ordinance is water, wherein the party is to be baptized, in the name of the Father, and of the Son, and of the Holy Spirit. ( Matthew 28:19, 20; Acts 8:38 )
4 Immersion, or dipping of the person in water, is necessary to the due administration of this ordinance. ( Matthew 3:16; John 3:23 ) London Baptist confession 1689
1. The supper of the Lord Jesus was instituted by him the same night wherein he was betrayed, to be observed in his churches, unto the end of the world, for the perpetual remembrance, and shewing forth the sacrifice of himself in his death, confirmation of the faith of believers in all the benefits thereof, their spiritual nourishment, and growth in him, their further engagement in, and to all duties which they owe to him; and to be a bond and pledge of their communion with him, and with each other. ( 1 Corinthians 11:23-26; 1 Corinthians 10:16, 17,21 )
2. In this ordinance Christ is not offered up to his Father, nor any real sacrifice made at all for remission of sin of the quick or dead, but only a memorial of that one offering up of himself by himself upon the cross, once for all; and a spiritual oblation of all possible praise unto God for the same. So that the popish sacrifice of the mass, as they call it, is most abominable, injurious to Christ's own sacrifice the alone propitiation for all the sins of the elect. ( Hebrews 9:25, 26, 28; 1 Corinthians 11:24; Matthew 26:26, 27 )
3. The Lord Jesus hath, in this ordinance, appointed his ministers to pray, and bless the elements of bread and wine, and thereby to set them apart from a common to a holy use, and to take and break the bread; to take the cup, and, they communicating also themselves, to give both to the communicants. ( 1 Corinthians 11:23-26, etc. )
4. The denial of the cup to the people, worshipping the elements, the lifting them up, or carrying them about for adoration, and reserving them for any pretended religious use, are all contrary to the nature of this ordinance, and to the institution of Christ. ( Matthew 26:26-28; Matthew 15:9; Exodus 20:4, 5 )
5. The outward elements in this ordinance, duly set apart to the use ordained by Christ, have such relation to him crucified, as that truly, although in terms used figuratively, they are sometimes called by the names of the things they represent, to wit, the body and blood of Christ, albeit, in substance and nature, they still remain truly and only bread and wine, as they were before. ( 1 Corinthians 11:27; 1 Corinthians 11:26-28 )
6. That doctrine which maintains a change of the substance of bread and wine, into the substance of Christ's body and blood, commonly called transubstantiation, by consecration of a priest, or by any other way, is repugnant not to Scripture alone, but even to common sense and reason, overthroweth the nature of the ordinance, and hath been, and is, the cause of manifold superstitions, yea, of gross idolatries. ( Acts 3:21; Luke 14:6, 39; 1 Corinthians 11:24, 25 )
7. Worthy receivers, outwardly partaking of the visible elements in this ordinance, do then also inwardly by faith, really and indeed, yet not carnally and corporally, but spiritually receive, and feed upon Christ crucified, and all the benefits of his death; the body and blood of Christ being then not corporally or carnally, but spiritually present to the faith of believers in that ordinance, as the elements themselves are to their outward senses. ( 1 Corinthians 10:16; 1 Corinthians 11:23-26 )
8. All ignorant and ungodly persons, as they are unfit to enjoy communion with Christ, so are they unworthy of the Lord's table, and cannot, without great sin against him, while they remain such, partake of these holy mysteries, or be admitted thereunto; yea, whosoever shall receive unworthily, are guilty of the body and blood of the Lord, eating and drinking judgment to themselves. ( 2 Corinthians 6:14, 15; 1 Corinthians 11:29; Matthew 7:6 ) London Baptist confession 1689
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Of the Law of Christ listen here
I. How de we define Law biblically.
The Law is not the timeless moral will of God (whatever God demands of us)
Rather, the Law is the Sinai covenant, given in the form of a typological republication of the Adamic covenant of works.
II. CHRIST FULFILLS THE COVENANT OF WORKS
Christ, as the Second Adam and the promise seed, fulfilled both the Covenant of Works and the Covenants of Promise (2 Cor 1:20, Eph 2:12, Gal 3:16,29)
Christ is the end of the Law for righteousness. The end of the Law means fulfillment that abrogates. (Rom 10:4)
III. ARE BELIEVERS UNDER THE LAW?
Believers have been set free from the Law by means of their union with Christ in his death. The Law has jurisdiction over a person only as long as he is alive (Rom. 7:1; Gal. 2:19).
Because we have died with Christ, we are "not under law" (Rom. 6:14-15; 7:4-6; 1 Cor. 9:20; Gal. 3:23-25; 4:4-5, 21; 5:18). This means we are free from its condemnation and from its commanding authority
IV. BELIEVERS ARE NOW UNDER THE LAW OF CHRIST
This freedom from the Law does not mean that believers have been set free from all ethical standards. We are not anomos but ennomos Christou, "under the Law of Christ" (1 Cor. 9:21; Gal. 6:2). Having died to the Law, we have been married to another (Rom. 7:4).
This law is called also the New commandment (John 13:34), The royal law (James 2:8) charity (2 Peter 1:7) The great commandment (Matt 22:36)
V. WHAT IS THE LAW OF CHRIST
The Law of Christ is not vague or nebulous. It has been revealed in the indicative and the imperative, which is given concrete expression in the ethical teaching of Jesus (e.g., the Sermon on the Mount) and in the apostolic exhortations to live in accordance with our union with Christ (e.g., Eph. 4-6; Col. 3, etc.).
Although the Law of Christ is not identical with the Law of Moses, it does reach back to the Law of Moses in order to bring over those aspects of its teaching that are rooted in God's righteous nature and man's creation in God's image.
VI. WHY IS THIS IMPORTANT
It’s the only way to walk in true victory and holiness (Rom 7:1-6)
For further study read Lee Irons paper
here