Do you have to constantly study the bible to maintain your wisdom?

in 2020 and 2021 I was heavily focused on bible analysis and in 2022 I was focused more on book writing and lecture witnessing and it seems my intellectual skills have changed over the last few years. I looked at stuff I wrote around a year ago and it seems like it was written by somebody other than me.

Do you have to constantly study the bible to maintain your wisdom?
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