“For if the inheritance be of the law, it is no more of promise: but God gave it to Abraham by promise.”
Galatians 3:18 KJV
We are all the children of God by faith in Christ Jesus, and if we be Christ’s, then are we Abraham’s seed, and heirs according to the promise. The Spirit itself beareth witness with our spirit, that we are the children of God: and if children, then heirs; heirs of God, and joint-heirs with Christ.
Paul, a servant of God, and an apostle of Jesus Christ, according to the faith of God’s elect, and the acknowledging of the truth which is after godliness;
in hope of eternal life, which God, that cannot lie, promised before the world began;
Titus 1:1-2 KJV
For God is not unrighteous to forget your work and labour of love, which ye have shewed toward his name, in that ye have ministered to the saints, and do minister.
And we desire that every one of you do shew the same diligence to the full assurance of hope unto the end:
that ye be not slothful, but followers of them who through faith and patience inherit the promises.
For when God made promise to Abraham, because he could swear by no greater, he sware by himself,
saying, Surely blessing I will bless thee, and multiplying I will multiply thee.
And so, after he had patiently endured, he obtained the promise.
Hebrews 6:10-15 KJV
Hearken, my beloved brethren, Hath not God chosen the poor of this world rich in faith, and heirs of the kingdom which he hath promised to them that love him?
James 2:5 KJV