[Gen 22:16-18 KJV] (16) And said, By myself have I sworn, saith the LORD, for because thou hast done this thing, and hast not withheld thy son, thine only son: (17) That in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of the heaven, and as the sand which is upon the sea shore; and thy seed shall possess the gate of his enemies; (18) And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.

[2Sa 23:5 KJV] (5) Although my house be not so with God; yet he hath made with me an everlasting covenant, ordered in all things, and sure: for this is all my salvation, and all my desire, although he make it not to grow.

[Psa 89:34-37 KJV] (34) My covenant will I not break, nor alter the thing that is gone out of my lips. (35) Once have I sworn by my holiness that I will not lie unto David. (36) His seed shall endure for ever, and his throne as the sun before me. (37) It shall be established for ever as the moon, and as a faithful witness in heaven. Selah.

[Act 13:34 KJV] (34) And as concerning that he raised him up from the dead, now no more to return to corruption, he said on this wise, I will give you the sure mercies of David.

[Rom 9:7-13 KJV] (7) Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called. (8) That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed. (9) For this is the word of promise, At this time will I come, and Sara shall have a son. (10) And not only this; but when Rebecca also had conceived by one, even by our father Isaac; (11) (For the children being not yet born, neither having done any good or evil, that the purpose of God according to election might stand, not of works, but of him that calleth;) (12) It was said unto her, The elder shall serve the younger. (13) As it is written, Jacob have I loved, but Esau have I hated.

[Gal 3:8-9, 14-19, 26-29 KJV] (8) And the scripture, foreseeing that God would justify the heathen through faith, preached before the gospel unto Abraham, saying, In thee shall all nations be blessed. (9) So then they which be of faith are blessed with faithful Abraham. ... (14) That the blessing of Abraham might come on the Gentiles through Jesus Christ; that we might receive the promise of the Spirit through faith. (15) Brethren, I speak after the manner of men; Though it be but a man's covenant, yet if it be confirmed, no man disannulleth, or addeth thereto. (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. (17) And this I say, that the covenant, that was confirmed before of God in Christ, the law, which was four hundred and thirty years after, cannot disannul, that it should make the promise of none effect. (18) For if the inheritance be of the law, it is no more of promise: but God gave it to Abraham by promise. (19) Wherefore then serveth the law? It was added because of transgressions, till the seed should come to whom the promise was made; and it was ordained by angels in the hand of a mediator. ... (26) For ye are all the children of God by faith in Christ Jesus. (27) For as many of you as have been baptized into Christ have put on Christ. (28) There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus. (29) And if ye be Christ's, then are ye Abraham's seed, and heirs according to the promise.

[Gal 4:21-31 KJV] (21) Tell me, ye that desire to be under the law, do ye not hear the law? (22) For it is written, that Abraham had two sons, the one by a bondmaid, the other by a freewoman. (23) But he who was of the bondwoman was born after the flesh; but he of the freewoman was by promise. (24) Which things are an allegory: for these are the two covenants; the one from the mount Sinai, which gendereth to bondage, which is Agar. (25) For this Agar is mount Sinai in Arabia, and answereth to Jerusalem which now is, and is in bondage with her children. (26) But Jerusalem which is above is free, which is the mother of us all. (27) For it is written, Rejoice, thou barren that bearest not; break forth and cry, thou that travailest not: for the desolate hath many more children than she which hath an husband. (28) Now we, brethren, as Isaac was, are the children of promise. (29) But as then he that was born after the flesh persecuted him that was born after the Spirit, even so it is now. (30) Nevertheless what saith the scripture? Cast out the bondwoman and her son: for the son of the bondwoman shall not be heir with the son of the freewoman. (31) So then, brethren, we are not children of the bondwoman, but of the free.

[Heb 6:13-20 KJV] (13) For when God made promise to Abraham, because he could swear by no greater, he sware by himself, (14) Saying, Surely blessing I will bless thee, and multiplying I will multiply thee. (15) And so, after he had patiently endured, he obtained the promise. (16) For men verily swear by the greater: and an oath for confirmation is to them an end of all strife. (17) Wherein God, willing more abundantly to shew unto the heirs of promise the immutability of his counsel, confirmed it by an oath: (18) That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us: (19) Which hope we have as an anchor of the soul, both sure and stedfast, and which entereth into that within the veil; (20) Whither the forerunner is for us entered, even Jesus, made an high priest for ever after the order of Melchisedec.

[Heb 11:17-19 KJV] (17) By faith Abraham, when he was tried, offered up Isaac: and he that had received the promises offered up his only begotten son, (18) Of whom it was said, That in Isaac shall thy seed be called: (19) Accounting that God was able to raise him up, even from the dead; from whence also he received him in a figure.

[2Co 1:20 KJV] (20) For all the promises of God in him are yea, and in him Amen, unto the glory of God by us.