6학년 이상이 자연사하려면,  이순(耳順)의 명령에 따라야 한다.
철딱서니 없이 도전하는 자는 교만한 자이다.
개인별 유전자(복제)생명이라면,
구태여 백신을 맞지않아도 수명에 맞도록  살다가 죽게될 것이다.
따라서, 더 살아보겠다고 백신을 맞는다 하여도  수명을 늘릴 수는 없다.

Can worry make you live longer?
 Why worry about clothes?
Look how the wild flowers grow. They don't work hard to make their clothes.
 But I tell you that Solomon with all his wealth wasn't as well clothed as one of them.
God gives such beauty to everything that grows in the fields,
even though it is here today and thrown into a fire tomorrow.
 He will surely do even more for you! Why do you have such little faith?
 Don't worry and ask yourselves,
"Will we have anything to eat? Will we have anything to drink? Will we have any clothes to wear?"
Only people who don't know God are always worrying about such things.
Your Father in heaven knows that you need all of these.(mathew6:27~32)