(Rom 4:1)“What shall we say then that Abraham our father, as pertaining to the flesh hath found?” Notice that Paul, a Jew, is including all the saved as the children of Abraham: “our father”. The promise made to Abraham was not only of those physically his offspring, but all those spiritually his offspring, (Rom 4:16)“ Therefore it is of faith, that it might be by grace; to the end the promise might be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham; who is the father of us all,”. I pray you are a child of Abraham by faith, that is, acting upon that which the Word of God reveals.