I'll leave this discussion off at, Torah observance for Christians wasn't an idea recorded anywhere until the mid 1800s, outside of a few heretical groups in the 2nd and 3rd century.As long as you following Jesus foot steps and keeping his Commandments, Statues and Judgements, you should have no problem walking down that narrow path in truth and righteousness. But Jesus warn us that this walk is not easy. Jesus says in Matthew 10: 34 Think not that I am come to send peace on earth: I came not to send peace, but a sword. 35 For I am come to set a man at variance against his father, and the daughter against her mother, and the daughter in law against her mother in law. 36 And a man's foes shall be they of his own household. 37 He that loveth father or mother more than me is not worthy of me: and he that loveth son or daughter more than me is not worthy of me. 38 And he that taketh not his cross, and followeth after me, is not worthy of me. 39 He that findeth his life shall lose it: and he that loseth his life for my sake shall find it.
The problem in your household starts when you began obeying all of God's laws and statues of conduct, from the ten commandments to the least commandment. We cannot choose to obey one without obeying the others. For instance, if it's still good to pay tithes (as many preach), then it is still good to obey God's dietary law (not eating pork, catfish, etc...Leviticus 11:1-47). Similarly, you cannot purposely trip a blind person (Leviticus 19:14) and claim to love your neighbor as yourself. Neither can you break God's Sabbath days (Leviticus 19:30) and claim to love God with all your heart, soul and mind.
Many, I say many fight to uphold man's traditional holidays (Sunday the 1st day as the Sabbath, Christmas, Easter and Halloween), but few are obeying God's Holy Days (Saturday the 7th day Sabbath, the Passover, Pentecost, etc...Leviticus 23:1-44). All of God's laws are still good and must be obeyed if we want eternal life and come up in the first resurrection. We might not be able to observe everything perfectly, but can fight a good fight. Paul said in (1 Cor. 9:24-27) (v.24) Know ye not that they which run in a race run all, but one receiveth the prize? So run, that ye may obtain. (v.25) And every man that striveth for the mastery is temperate in all things. Now they do it to obtain a corruptible crown: but we an incorruptible. Paul says that when you run in a race every body is running for a prize. But this prize that he is referring to is eternal life, that’s what he means by an incorruptible, he’s talking about an incorruptible body, a heavenly body. (v.26) I therefore so run, not as uncertainly, so fight, not as one that beateth the air: (v.27) But I keep under my body, and bring it into subjection: lest that by any means, when I have preached to others, I myself should be a castaway. You see Paul knew exactly what was going on that why he says he has to bring his body under subjection. Under subjection to what? To God’s Law, Paul knew that if he didn’t continue to keep Gods law that even after he had preached to many that he himself could still become a castaway.
If we do this our prize awaits us at the end. "...if thou wilt enter into life, keep the commandments" (Matthew 19:17).
I'm curious, where were all the true believers in that time? People use this logic all the time for things like the Pre-Trib Rapture or Charasmatic type "spiritual warfare" and "gifts", but it's very rare in this case.
Maybe you don't, but it is something to consider.