How do Evangelicals explain when Paul writes "I, not the Lord"?

Paul writes in 1 Corinthians 7:10 ([NKJV](https://www.biblegateway.com/passage/?search=1+Corinthians+7%3A10&version=NKJV)) : > Now to the married I command, **yet not I but the Lord**: A wife is not to depart from her husband In [verse 12](https://www.biblegateway.com/passage/?search=1+Corinthians+7%3A12&version=NKJV) Paul writes: > But to the rest **I, not the Lord**, say: If any brother has a wife who does not believe, and she is willing to live with him, let him not divorce her. How do Evangelicals explain this in line with scripture inspired by God?