Romans 8:26 is used by some people to prove that this is about speaking in tongues that nobody can utter
or understand except the Holy Spirit in you.

However, this is contradictory. Notice, it’s not speaking in tongues because it says groanings.

Another thing is notice the verse says “which cannot be uttered.” How can you speak in tongues if you can’t utter them?

As a matter of fact, Acts 2:4 shows you when the Holy spirit is going to help you speak in tongues, it’s something you can utter.

So, this totally contradicts.

This passage in Romans 8 is obviously talking about groanings or pains that you have inside that the Holy Spirit can understand and communicate to God.

This is obviously not talking about speaking in tongues.