No we would be of Abraham. The promise which we receive God is the promise that "All Nations of the world will be blessed" Which is what Paul was trying to show in Romans 9, That just being a child of abraham does not guarantee anyone entry into Heaven.
Rev 3:7 And to the angel of the church in Philadelphia....
Rev 3:12 Him that overcomes will I make a pilliar in the temple of my God, and he shall go no more, out: and I will WRITE UPON HIM THE NAME OF MY GOD and the name of the city of my God, which is "new jerusalem, which comes down out of heaven from my God: and I will write upon him my new name.
Rev 7:3 Saying, Hurt not the earth, neither the sea, nor the trees, till we have SEALED the servants of our god IN THEIR FOREHEADS.
Rev 7:4 And I heard the number of them which WERE SEALED and there were SEALED an HUNDRED, AND FORTY AND FOUR THOUSAND of all the tribes of the CHILDREN OF ISRAEL.
Rev 9:4 And it was commanded them that they should NOT hurt the grass the earth, neither any green thing, neither any tree; but ONLY THOSE MEN which have NOT the SEAL OF GOD IN THEIR FOREHEADS.
So these ones are sealed before the trumpets are blown. They cannot be touched, but there are only 144,000 sealed. Can you explain this. Remember these ones have followed the lamb wheresoever he goes. These ones have been feeding on the truth.
John 6:27 Labour not for the MEAT which perishes, but for that MEAT, which endures unto everlasting life, which the SON of man shall give unto you: for him hath God the Father SEALED.
So these ones feeding of the truth (meat which gives everlasting life) will be sealed. There are other christians worshiping but have not been feeding on the truth. They have the basics, and believe in Christ, but believe in another doctrine (not the full truth) or their hearts arnt quite right. see the letters to the churches. These ones will go through tribulation. Great tribulation last days. But the 144,000 are special. They are especially chosen by God to teach the truth. God needs some truthful ministers out there, amongst the millions. These ones make up the firstfruits. These ones were not defiled with women (religion, false beliefs) These were redeemed from among MEN (not just physical Israelites) Can you see the pattern.
Matthew 19:30 But MANY that are FIRST shall be LAST: and the LAST shall be FIRST.
The Israelites rejected Christ, they were the first ones invited but they refused to come to the wedding, so invitations went out to the Gentiles and the gentiles accepted Christ. The Gentiles are FIRST to enter the Kingdom, and the Isralites will be grafted back in LAST.
Gentiles - FIRST
FIRST - FIRSTFRUITS
But only only 144,000 are FIRSTFRUITS
the rest of the christian gentiles will go through GREAT TRIBULATION
and will come in soon after, but will not be first.
We all came to salvation through the 12 tribes of Israel. It all started from them. The promise was made to Abraham yes, but the tribes were formed after this promise. If it wasn't for the 12 tribes we would not of heard of God. It started with them and we were adopted in later under the new covenant, so that makes us part of the 12 tribes. And Israel is made up of 12 tribes.
Romans 9:4 Who are Israelites; to whom pertains the adoption, and the glory, and the covenants, and the giving of the law, and the service of God and the promises.
5. Whose are the FATHERS, and of whom as concerning the flesh Christ came, who is over all, God blessed forever. Amen
6. Not as though the word of God has taken none effect. For THEY are NOT ALL ISRAEL, WHICH ARE OF ISRAEL.
I hope this makes sense.