I have some text…….

You will have to provide a link for us to see this text that you want in one place but not others.

Regards

Many fixes ??
1. It means your theme uses index.php to display single post view – see https://codex.www.ads-software.com/Template_Hierarchy
In this case use a conditional:
https://codex.www.ads-software.com/Conditional_Tags
2. Create a single.php template file that doesn’t have the “text”
3. Use a theme that has single.php file

I created a single.php file with all the text that I wanted removed and so far it is working right.

Yeah to the moshu.