I’m 53 years old. I’ve been in church all of my life. Teach etc. I’ve been on dozens of theology blogs etc. In all my years... you are the very first person who told me “by his stripes we are healed”... means we won’t get sick. So there you go... you got the record.
I didn’t say that you won’t get sick; I said that we are healed by his stripes when we avail ourselves of it as offered in his word.
We all sin and sin brings disease. We have to constantly confess and repent, day by day, and moment by moment.