So by your reckoning ole unworthy one, that a person can live their entire life without sinning?
Based on Enoch it is possible for a person not to sin at all. But, that person would not be calling Jesus their savior neither.
Remember Enoch was much closer to Adam and Eve, so the influnce of a sin enviroment vs living in complete fellowship with God the Father would be more salient to him than it would be for us today.
So, yes in theory it is possible to have never sinned in the first place.
Read Genesis 3, Adam’s disobedence effected the enviroment. There is no indication that there is a “sin gene” .
Jeremiah 31:27-34 (King James Version)
29**In those days they shall say no more, The fathers have eaten a sour grape, and the children’s teeth are set on edge.
30But every one shall die for his own iniquity: every man that eateth the sour grape, his teeth shall be set on edge. **
33But this shall be the covenant that I will make with the house of Israel; After those days, saith the LORD, I will put my law in their inward parts, and write it in their hearts; and will be their God, and they shall be my people.
34And they shall teach no more every man his neighbour, and every man his brother, saying, Know the LORD: for they shall all know me, from the least of them unto the greatest of them, saith the LORD: for I will forgive their iniquity, and I will remember their sin no more.
Jer 31 is applied to the new covenant in Hebrews 8.
Ezekiel 18
1The word of the LORD came unto me again, saying,
2What mean ye, that ye use this proverb concerning the land of Israel, saying, The fathers have eaten sour grapes, and the children’s teeth are set on edge?
3As I live, saith the Lord GOD, ye shall not have occasion any more to use this proverb in Israel.
4**Behold, all souls are mine; as the soul of the father, so also the soul of the son is mine: the soul that sinneth, it shall die. **
5But if a man be just, and do that which is lawful and right,
6And hath not eaten upon the mountains, neither hath lifted up his eyes to the idols of the house of Israel, neither hath defiled his neighbour’s wife, neither hath come near to a menstruous woman,
7And hath not oppressed any, but hath restored to the debtor his pledge, hath spoiled none by violence, hath given his bread to the hungry, and hath covered the naked with a garment;
8He that hath not given forth upon usury, neither hath taken any increase, that hath withdrawn his hand from iniquity, hath executed true judgment between man and man,
9Hath walked in my statutes, and hath kept my judgments, to deal truly; he is just, he shall surely live, saith the Lord GOD.
In short, our sin nature is aquired through the practice of disobedence.
If you look at the nature of the sin nature it is disobedence to God’s laws.
Galatians 5:19-21 (King James Version)
19Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness,
20Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies,
21Envyings, murders, drunkenness, revellings, and such like: of the which I tell you before, as I have also told you in time past, that they which do such things shall not inherit the kingdom of God.