Flesh has several meanings:¹ the soft tissue that makes up the bodies of mankind, animals, fowls, or fish;² mortality; or³ the physical or carnal nature of man.

Body tissue: Animals shall be meat for you, Gen. 9: 3. Animals should not be killed needlessly, JST, Gen 9: 10-11 (D&C 49: 21). Animals and fowl are for man to eat and use as clothing, D&C 49: 18-19 (D&C 59: 16-20). We should eat meat sparingly, D&C 89: 12-15.

Mortality: Jesus is the only one begotten of the Father into mortality, John 1: 14 (Mosiah 15: 1-3). Adam became the first flesh, Moses 3: 7.

Carnal nature of man: Cursed be the man that makes flesh his arm, Jer. 17: 5. The spirit is willing, but the flesh is weak, Mark 14: 38. The lust of the flesh is not of the Father, 1 Jn. 2: 16. Nephi was sorrowful because of his flesh and iniquities, 2 Ne. 4: 17-18, 34. Do not reconcile yourselves to the devil and the flesh, 2 Ne. 10: 24.