Promises to Abraham are in Genesis chapters 12 15 17 of Old Testament of Bible.
Chuck Baldwin explains the Bible text is that God made a covenant with the Abraham. The Bible does not indicate God's compact with Abraham was with other people or descendants. Chuck Baldwin contrasts the unconditional covenant with Abraham with the conditional covenant with Moses.
Some facts about modern Israel and their leadership:
The current nation of Israel was created in 1948, after World War II. Israel had not existed for about 2200 years.
Netanyahu lived in Cheltenham Pennsylvania twice, from 1956 to 1958 when he was in elementary school, and from 1963 to 1967 when he was in high school, while his father taught at a local Jewish studies institute.
I grew up in the Philadelphia area and I know that Netanyahu went to school in Philadelphia and hung out with Irving Kristol, the godfather of the whole Neocon movement.
They were Polish jews with family name Mileikowsky. They emigrated to Palestine in 1920 and changed their name from Mileikowsky to Netanayhu.