The CREATOR established the covenant with Isaac because his father Abraham obeyed and followed the CREATOR. The Creator made it clear that this would be an everlasting covenant and that it would be established with Abraham's second son Isaac, not with his first-born son Ishmael.
Genesis 17:18-21"And Abraham said unto ALHYM (God), O that Ishmael might live before thee!
And ALHYM said, Sarah thy wife shall bear thee a son indeed; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant, and with his seed after him.
And as for Ishmael, I have heard thee: Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly; twelve princes shall he beget, and I will make him a great nation. But my covenant will I establish with Isaac, which Sarah shall bear unto thee at this set time in the next year."
So here it clearly states that the covenant is established with Isaac and Ismael received only a blessing.
Genesis 17:15 and 16"And ALHYM said unto Abraham, As for Sarai thy wife, thou shalt not call her name Sarai, but Sarah shall her name be. And I will bless her, and give thee a son also of her: yea, I will bless her, and she shall be a mother of nations; kings of people shall be of her."
A covenant was also established with Abraham wife Sarah that she would be the mother of nations, and Kings would come from her. Her name was changed to Sarah to reflect this honor. One’s name is changed when their relationship with the Creator is altered. For Abram name was changed to Abraham because his relationship also was altered with the Creator.
Covenant with Abraham
Covenant with Jacob (Israel)
When Jacob and Esau were in the womb of their mother they wrestled in her womb and the Creator came to her and told her there were two nations in her womb and that the elder will serve the younger. Names were considered to be meaningful in some ways, Jacob name means ("supplanted") because when he was born he was holding on to Esau's heel, as if attempting to overtake him. In that act, from Jacob, it had already been spoken in existence by the Creator when he told Sarah the elder will serve the younger. So this was a spiritual act taking place destined by the Creator.
Genesis 25:23 "And the Creator said unto her, Two nations are in thy womb, and two manner of people shall be separated from thy bowels; and the one people shall be stronger than the other people; and the elder shall serve the younger and when her days to be delivered were fulfilled, behold, there were twins in her womb and the first came out red, all over like an hairy garment; and they called his name Esau and after that came his brother out, and his hand took hold on Esau's heel; and his name was called Jacob."
In Genesis 25:29-34, when the elder brother, Esau, sold his birthright to the younger brother Jacob, for some bread and lentil stew, the birthright along with ALHYM covenant went to Jacob who was renamed Israel by ALHYM (God). Some people would look at this as deception from Jacob, but remember the Creator told there mother "the elder shall serve the younger?" So this would make it destined for Jacob to have the birthright along with the covenant of his oldest brother. A lot would argue that's not right though, but the Creator has his reasons of why he does what he does because the Creator states in Isaiah 55: 8-9" For my thoughts are not your thoughts, neither are your ways my ways, say YHWH. For as the heavens are higher than the earth, so are my ways higher than your ways, and my thoughts than your thoughts." So he has his reasons of why he wanted Jacob to have the birthright which led him to receive the covenant.
Genesis 27:28 and 29 "Therefore ALHYM (God) gave thee of the dew of heaven, and the fatness of the earth, and plenty of corn and wine: Let people serve thee, and nations bow down to thee: be lord over thy brethren, and let thy mother's sons bow down to thee: cursed be everyone that curseth thee, and blessed be he that blesseth thee."
This is the blessing inheritance bestowed on Jacob by his father Isaac and it clearly states that Jacob is to be lord (master) over his brethren Esau, just as the Creator stated to Sarah when the two brothers were in her womb wrestling.
Genesis 28:3-4 Finishes Jacobs blessing, blessing Jacob and his descendants to inherit the land, which ALHYM (God) gave to Abraham (Jacobs grandfather). This signifies the Covenant being passed down from one generation to the next just as the Creator promised Abraham in Genesis 12:7. In Genesis 28:13 and 15 the Creator appears to Jacob reminding him that he is his ALHYM and his covenant stands with him.
Jacobs Name Changed to Israel Genesis 32:24-28
When Jacob wrestled with the angel he demanded the angel to bless him in order to stop wrestling him the angel pronounced a blessing upon him by changing his name to Israel: which can mean "He who prevails with YHWH," or "May YHWH prevail," depending on the context.
Twelve sons of Israel
To read the blessings that were bestowed upon each brother read Genesis 49:1-28
Joseph- Ephraim (youngest) and Manasseh (oldest)
These 12 sons make up the 12 tribes of Israel that were in Egypt, which are the HEBREW ISRAELITES (THE NATION OF ISRAEL).
In Genesis 12:1-3, The CREATOR lets Abraham know he will make him into a great nation and make his name great and will bless those who bless him and curse those who curse him.
And the CREATOR appeared unto Abram, and said,
"Unto thy seed will I give this land: and there builder he an altar unto the Creator, who appeared unto him."
This promise is to Abraham's seed and offspring’s, that he would be given the land surrounding the area of Shechem which was called the land of Canaan back then but now in modern-day Lebanon, Israel, Palestinian territories, the western part of Jordan and southwestern Syria.
Genesis 13:14-15, 15:5 elaborates on All the Land that Abram saw would be given to him and who ever came from his seed forever. Genesis 15:5 the CREATOR compares Abrams descendants to be as the stars in the sky, when you think about that it would have been impossible to number the stars seen across the heavens in a clear night sky
Genesis 17:7-9 "And I will establish my covenant between me and thee and thy seed after thee in their generations for an everlasting covenant, to be a God unto thee, and to thy seed after thee. And I will give unto thee, and to thy seed after thee, the land wherein thou art a stranger, all the land of Canaan, for an everlasting possession; and I will be their God. And God said unto Abraham, Thou shalt keep my covenant therefore, thou, and thy seed after thee in their generations."
This scripture is key, the covenant that YHWH established with Abraham, would be also for his descendents down through history forever. He would be their ALHYM (God) and in return they would receive blessings.
It is taught and still believed that the CREATOR has permanently rejected the Hebrew Israelites (Children of Israel) for their disobedience towards the CREATORS laws, statues and judgements. There are many Christians that feel this way, supposing that Christianity has "superseded" or "replaced" Israel as the CHOSEN PEOPLE OF THE CREATOR. This point of view is known as "REPLACEMENT THEOLOGY" To rationally think and teach this defaces and insults the very nature of the CREATOR and how deep his love and mercy is for the HEBREW ISRAELITES. You may be asking yourself, what am I talking about? And saying things to yourself like:
These people are in a cult.
God "put on hold" His covenant with Israel, and God was the only one who could reinstate that covenant.
The Children of Israel disobeyed God's law's, which would cause them to break the covenant the Creator established with them on Mt. Sinai, so this website or any Israelite clearly does not know what they are talking about.
Scriptures such as Jeremiah 31:35-36, Judges 2:1 are just a few, that explain how the Creator never permanently did away with the children of Israel and another thing we have to understand is many churches teach the Covenant was established with the Children of Israel on Mt. Sinai, not realizing, that it is a Covenant that was only being reinforced to the Children of Israel at Mt. Sinai. The Covenant was already established with ABRAHAM, ISAAC, and JACOB (ISRAEL) who are the patriarch of this great nation of people
Covenant with Isaac