These Promises were not fulfilled in the experience of Abraham, Isaac and Jacob, nor have they been fulfilled at any time since.

And he (God) gave him (Abraham) none inheritance in it, no, not so much as to set his foot on: yet he promised that he would give it to him for a possession (Acts 7:5).

By faith Abraham, when he was called to go out into a place which he should after receive for an inheritance, obeyed; and he went out, not knowing whither he went. By faith he sojourned in the land of promise, as in a strange country, dwelling in tabernacles with Isaac and Jacob, the heirs with him of the same promise: (Hebrews 11:8-9).

These all died in faith, not having received the promises, but having seen them afar off, and were persuaded of them, and embraced them, and confessed that they were strangers and pilgrims on the earth. (Hebrews 11:13-35, 39-40).

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...And if ye be Christ's, then are ye Abraham's seed, and heirs according to the promise. (Galatians 3:16,29).

Now I (Paul) say that Jesus Christ was a minister of the circumcision for the truth of God, to confirm the promises made unto the fathers: (Romans 15:8).

Blessed be the Lord God of Israel; for he hath visited and redeemed his people, And hath raised up an horn of salvation for us (that is, Jesus - see context) in the house of his servant David; As he spake by the mouth of his holy prophets, which have been since the world began: That we should be saved from our enemies, and from the hand of all that hate us; to perform the mercy promised to our fathers, and to remember his holy covenant; The oath which he sware to our father Abraham (Luke 1:68-73).