Paul said it best when he quoted moses, and spoke of the faith of abraham
Gal 3: 6 just as Abraham “believed God, and it was accounted to him for righteousness.” 7 Therefore know that only those who are of faith are sons of Abraham. 8 And the Scripture, foreseeing that God would justify the Gentiles by faith, preached the gospel to Abraham beforehand, saying, “In you all the nations shall be blessed.” 9 So then those who are of faith are blessed with believing Abraham.
The Law Brings a Curse
10 For as many as are of the works of the law are under the curse; for it is written, “Cursed iseveryone who does not continue in all things which are written in the book of the law, to do them.”
So there is no way 1 is correct, bcause the standard set by God when he gave the law was perfection, show me one person other than christ who fulfilled that standard,