If we consider Abraham our father, then we understand justification by faith.

Trusting the One who is able to make up the difference for us means we follow in the example of Father Abraham. He trusted that what God said was true and did not rely on the works of his flesh (i.e. circumcision) to be made right in God’s sight.
God alone can justify the ungodly. He did this through the gift of His Son, Jesus Christ the Lord. As a result, no one can boast in their righteous acts but all those who believe God and receive His free gift are considered blessed.
To have faith like a child requires humility (we must become like little children to receive the kingdom of heaven- see Matthew 18:3). Children have a natural faith/trust toward what is right.
All mankind has an opportunity to receive Christ Jesus as Savior (whether they have followed certain rules or not). For God so loved the world that He gave… (see John 3:16).
– Teresa #humbledbyHisgreatlove #trustinHisword #theHolyBible #thelivingWord #John1:1-14
Romans 4:1-12
English Standard Version
Abraham Justified by Faith
4 What then shall we say was gained by Abraham, our forefather according to the flesh? 2 For if Abraham was justified by works, he has something to boast about, but not before God. 3 For what does the Scripture say? “Abraham believed God, and it was counted to him as righteousness.” 4 Now to the one who works, his wages are not counted as a gift but as his due. 5 And to the one who does not work but believes in[a] him who justifies the ungodly, his faith is counted as righteousness, 6 just as David also speaks of the blessing of the one to whom God counts righteousness apart from works:
7 “Blessed are those whose lawless deeds are forgiven,
and whose sins are covered;
8 blessed is the man against whom the Lord will not count his sin.”
9 Is this blessing then only for the circumcised, or also for the uncircumcised? For we say that faith was counted to Abraham as righteousness. 10 How then was it counted to him? Was it before or after he had been circumcised? It was not after, but before he was circumcised. 11 He received the sign of circumcision as a seal of the righteousness that he had by faith while he was still uncircumcised. The purpose was to make him the father of all who believe without being circumcised, so that righteousness would be counted to them as well, 12 and to make him the father of the circumcised who are not merely circumcised but who also walk in the footsteps of the faith that our father Abraham had before he was circumcised.