The book of the generation of Jesus Christ starting from Abraham can be found in Matthew 1:1-16.
I wonder and I am sure you also want to know, How can Gentiles be made partakers of the salvation promised by God to Abraham?
Gen 22:18 And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.
Note that this is not in all thy seed but only to the one seed which is Christ Jesus.
Gal 3:16 Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ.
Gentiles are given the chance by God to become partakers of the promise made to that one seed of Abraham which is Christ.
Eph 3:6 That the Gentiles should be fellowheirs, and of the same body, and partakers of his promise in Christ by the gospel:
Gal 3:29 And if ye be Christ's, then are ye Abraham's seed, and heirs according to the promise.
One may ask, what about the seeds between Abraham and Jesus Christ? How can they become partakers of the promise made to Abraham? God healed Abimelech, and his wife, and his maidservants for the good deeds he made to Abraham.
Gen 20:14 And Abimelech took sheep, and oxen, and menservants, and womenservants, and gave them unto Abraham, and restored him Sarah his wife.
Gen 20:15 And Abimelech said, Behold, my land is before thee: dwell where it pleaseth thee.
Gen 20:16 And unto Sarah he said, Behold, I have given thy brother a thousand pieces of silver: behold, he is to thee a covering of the eyes, unto all that are with thee, and with all other: thus she was reproved.
Gen 20:17 So Abraham prayed unto God: and God healed Abimelech, and his wife, and his maidservants; and they bare children.
Gen 20:18 For the LORD had fast closed up all the wombs of the house of Abimelech, because of Sarah Abraham's wife.
Like Abimelech, the Gentiles can do the same with Jesus Christ.
Mt 25:34 Then shall the King say unto them on his right hand, Come, ye blessed of my Father, inherit the kingdom prepared for you from the foundation of the world:
Mt 25:35 For I was an hungred, and ye gave me meat: I was thirsty, and ye gave me drink: I was a stranger, and ye took me in:
Mt 25:36 Naked, and ye clothed me: I was sick, and ye visited me: I was in prison, and ye came unto me.
Mt 25:37 Then shall the righteous answer him, saying, Lord, when saw we thee an hungred, and fed thee? or thirsty, and gave thee drink?
Mt 25:38 When saw we thee a stranger, and took thee in? or naked, and clothed thee?
Mt 25:39 Or when saw we thee sick, or in prison, and came unto thee?
Mt 25:40 And the King shall answer and say unto them, Verily I say unto you, Inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me.
Mt 10:42 And whosoever shall give to drink unto one of these little ones a cup of cold water only in the name of a disciple, verily I say unto you, he shall in no wise lose his reward.
It is very clear that generations from Abraham and Christ Jesus including the Gentiles are partakers of the promised salvation only when they become part of the body.
And what about Angels?
Heb 2:16 For verily he took not on him the nature of angels; but he took on him the seed of Abraham.
Heb 1:14 Are they not all ministering spirits, sent forth to minister for them who shall be heirs of salvation?
In the day of judgment, we will judge every Angels performance.
1 Cor 6:3 Know ye not that we shall judge angels? how much more things that pertain to this life?
The way of salvation therefore started from Abraham to Jesus Christ and to Gentiles down to the Angels of God.
Jas 2:23 And the scripture was fulfilled which saith, Abraham believed God, and it was imputed unto him for righteousness: and he was called the Friend of God.
For us not to miss a shot, though shooting one to another is permitted, shoot at the flock, that way, we can never miss any single shot.
Gal 6:10 As we have therefore opportunity, let us do good unto all men, especially unto them who are of the household of faith.