and she said to Abraham, “Expel the slave woman and her son, for the slave woman’s son will never share in the inheritance with my son Isaac!” Now this matter distressed Abraham greatly because it concerned his son Ishmael. But God said to Abraham, “Do not be distressed about the boy and your maidservant. Listen to everything that Sarah tells you, for through Isaac your offspring will be reckoned.
All things have been entrusted to Me by My Father. No one knows the Son except the Father, and no one knows the Father except the Son and those to whom the Son chooses to reveal Him.
And if we are children, then we are heirs: heirs of God and co-heirs with Christ—if indeed we suffer with Him, so that we may also be glorified with Him. ... He who did not spare His own Son but gave Him up for us all, how will He not also, along with Him, freely give us all things?
Nor because they are Abraham’s descendants are they all his children. On the contrary, “Through Isaac your offspring will be reckoned.” So it is not the children of the flesh who are God’s children, but it is the children of the promise who are regarded as offspring. For this is what the promise stated: “At the appointed time I will return, and Sarah will have a son.”
Therefore, stop boasting in men. All things are yours, whether Paul or Apollos or Cephas or the world or life or death or the present or the future. All of them belong to you, and you belong to Christ, and Christ belongs to God.