God appeared to Abraham and said;" this is the land/country(promise land) that I am going to give to your descendants.........."Genesis 12:7. And then He said to Abraham;"......look at the stars and try to count them; I will give you as many descendants as that" Genesis 15:5. At the right time, God, did keep His promise to Abraham and blessed him with many descendants through Isaac, just as He blessed him materially with silver and gold because Abraham believed in Him. I'd like us to take note to see that; God did not bless Abraham first, until Abraham believed in Him though he(Abraham) did not SEE nor HEAR Him(God). See Genesis15:6 and Romans 4:3. At this point, it is clear that only by Faith in God we are made righteous and then qualify to receive His blessings, just as we saw in the case of Abraham who believed in God and was accepted as righteous and also qualified to receive God's blessings. However, a lack of Faith in God, disqualifies us from God's blessings. See Hebrew 3:19. Because the Israelites did not believe God, they were not able to enter the land He promised them. Though, He blessed their ancestor(Abraham) because he believed in Him, however, the children did not receive the overall blessing(promise land) because they did not believe. Now, if you have followed me carefully to this point, you would've noticed that: all these promises and activities, took place in the OLD COVENANT for Abraham and his descendants, and you may want to ask; how do all these things affect us we who are in the NEW COVENANT?. The scripture says: For God has made all prisoners of disobedience, so that He might show mercy to all.See Romans11:32. This means that: both Jews and gentiles have disobeyed God, so that His mercy might be shown to all through Christ Jesus. Now the truth I want to establish is that: Because the Jews have disobeyed God through their lack of faith in Him, just as the Gentiles did, we all have received His mercy as a result. So that; whether Christians, Muslims, Atheists, Buddhists and all, regardless of your religion, it is by FAITH in Christ Jesus that we are saved and are made the children of God through Abraham and will receive the blessings(promise land) that God gave to him(Abraham) through the promise of the Spirit in Christ Jesus. See Galatians 3:14. So that, Just as Abraham had FAITH in God and was blessed with Isaac who INHERITED his father's blessings and the promise of the promise land, we too irrespective of our religion, will also INHERIT the blessings of God to Abraham(the promise land and everything) through our FAITH in Christ Jesus and the spirit as his(Abraham's) children Just like Isaac. The scripture says:just as Isaac was, we too are children because of the spirit.See Galatians 4:28. By this, it means all of us are the children of Abraham by FAITH through Christ Jesus in this NEW COVENANT and are qualified to share God's blessings on him through our FAITH in Christ Jesus. Because the Israelites had failed in the FIRST COVENANT through their unbelieve, we, the Gentiles together with them have been given the second chance to become the children of Abraham all of us through Christ Jesus in this NEW COVENANT so as to receive God's blessings and what he promised His children. This is the INHERITANCE we have in God through Christ Jesus. Regardless of our RELIGION, we have the assurance that we are the HEIR of God and will receive what He promised and will also come to posses everything that He is through Christ our Lord. Finally, it is imperative to mention that: in the OLD COVENANT, it was the promise land(the land of Canaan) but in this NEW COVENANT that was wrought by Christ Jesus, ours is the promise of a NEW HEAVEN. So, we MUST be very careful that we do not receive that promise/blessing just as the Israelites did through UNBELIEVE(lack of faith)...God bless us all.