Christians emphasize faith while Jews emphasize "works" that we call mitzvot/commandments.
We ourselves are Jews by birth and not Gentile sinners; yet we know that a person is justified not by the works of the law but through faith in Jesus Christ. And we have come to believe in Christ Jesus, so that we might be justified by faith in Christ, and not by doing the works of the law, because no one will be justified by the works of the law. But if, in our effort to be justified in Christ, we ourselves have been found to be sinners, is Christ then a servant of sin? Certainly not! But if I build up again the very things that I once tore down, then I demonstrate that I am a transgressor. For through the law I died to the law, so that I might live to God. I have been crucified with Christ; and it is no longer I who live, but it is Christ who lives in me. And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave himself for me. I do not nullify the grace of God; for if justification comes through the law, then Christ died for nothing. (Galatians 2:15-21)
When God created Adam He made him different from animals in two ways. He created Adam in His "image" (meaning not in His appearance but in other qualities). He also commanded Adam. Animals were not commanded.
Genesis 1:27 And God created man in His image; in the image of God He created him; male and female He created them. 28 And God blessed them, and God said to them, "Be fruitful and multiply and fill the earth and subdue it, and rule over the fish of the sea and over the fowl of the sky and over all the beasts that tread upon the earth. " 29 And God said, "Behold, I have given you every seed bearing herb, which is upon the surface of the entire earth, and to all the fowl of the heavens, and every tree that has seed bearing fruit; it will be yours for food. 30 And to all the beasts of the earth and to all the fowl of the heavens, and to everything that moves upon the earth, in which there is a living spirit, every green herb to eat," and it was so.
2:15 Now the Lord God took the man, and He placed him in the Garden of Eden to work it and to guard it. 16 And the Lord God commanded man, saying, "Of every tree of the garden you may freely eat. 17 But of the Tree of Knowledge of good and evil you shall not eat of it, for on the day that you eat thereof, you shall surely die."
Obeying God's commandments are essential to being human. Jews have 613 commandments to obey, as applicable. (Temple and offering commandments are in abeyance and gender-related commandments do not apply to the opposite gender.) Non-Jews have seven principal ones.
Genesis 26:5 Because Abraham hearkened to My voice, and kept My charge, My commandments, My statutes, and My instructions."
Exodus 20:6 and [I] perform loving kindness to thousands [of generations], to those who love Me and to those who keep My commandments.
Leviticus 22:31 You shall keep My commandments and perform them. I am the Lord.
Numbers 15:40 So that you shall remember and perform all My commandments and you shall be holy to your God.
Deuteronomy 13:5 You shall follow the Lord, your God, fear Him, keep His commandments, heed His voice, worship Him, and cleave to Him.
Psalm 119:32 [In] the way of Your commandments I shall run, for You will broaden my understanding. --- 127 Because I loved Your commandments more than gold, even more than fine gold.
Ecclesiastes 12: The end of the matter, everything h