You are of the house of Israel and of Abraham thru the spirit of adoption. That new covenant was signified by Christ by his institution of the breaking of the bread and the wine as his body broken and his blood shed...as they would be at the following day ...for all of us...that we might have life eternal and fellowship with God forever.
Even if you were Jewish by heritage, only Christ can make you truly of Abraham by his blood, grafting all of us in to his own (Christ’s) vine.Our sins are forgiven and we need not fear death and the grave. Heaven and Earth shall pass away, but Christ’s words shall not pass away and if he, being the WORD of God(AND IS GOD) in flesh, abides in us, then we too,... shall abide in him and with the Father forever.
7 Understand, then, that those who have faith are children of Abraham. 8 Scripture foresaw that God would justify the Gentiles by faith, and announced the gospel in advance to Abraham: “All nations will be blessed through you.”[d] 9 So those who rely on faith are blessed along with Abraham, the man of faith. 10 For all who rely on the works of the law are under a curse, as it is written: “Cursed is everyone who does not continue to do everything written in the Book of the Law.”[e] 11 Clearly no one who relies on the law is justified before God, because “the righteous will live by faith.”[f] 12 The law is not based on faith; on the contrary, it says, “The person who does these things will live by them.”[g] 13 Christ redeemed us from the curse of the law by becoming a curse for us, for it is written: “Cursed is everyone who is hung on a pole.”[h] 14 He redeemed us in order that the blessing given to Abraham might come to the Gentiles through Christ Jesus, so that by faith we might receive the promise of the Spirit.
15 Brothers and sisters, let me take an example from everyday life. Just as no one can set aside or add to a human covenant that has been duly established, so it is in this case. 16 The promises were spoken to Abraham and to his seed. Scripture does not say “and to seeds,” meaning many people, but “and to your seed,”[i] meaning one person, who is Christ. 17 What I mean is this: The law, introduced 430 years later, does not set aside the covenant previously established by God and thus do away with the promise. 18 For if the inheritance depends on the law, then it no longer depends on the promise; but God in his grace gave it to Abraham through a promise.
19 Why, then, was the law given at all? It was added because of transgressions until the Seed to whom the promise referred had come. The law was given through angels and entrusted to a mediator. 20 A mediator, however, implies more than one party; but God is one.
21 Is the law, therefore, opposed to the promises of God? Absolutely not! For if a law had been given that could impart life, then righteousness would certainly have come by the law. 22 But Scripture has locked up everything under the control of sin, so that what was promised, being given through faith in Jesus Christ, might be given to those who believe.
23 Before the coming of this faith,[j] we were held in custody under the law, locked up until the faith that was to come would be revealed. 24 So the law was our guardian until Christ came that we might be justified by faith. 25 Now that this faith has come, we are no longer under a guardian.
26 So in Christ Jesus you are all children of God through faith, 27 for all of you who were baptized into Christ have clothed yourselves with Christ. 28 There is neither Jew nor Gentile, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus. 29 If you belong to Christ, then you are Abraham’s seed, and heirs according to the promise.
29 If you belong to Christ, then you are Abraham’s seed, and heirs according to the promise.
This explains how I get included, but it says nothing about a ‘covenant’.