What does it mean that the Spirit makes groanings which cannot be uttered?

Question:
In Romans 8:26, what does it mean when it says, “…but the Spirit itself maketh intercession for us with groanings which cannot be uttered”?

Answer:
The Holy Spirit which lives in us (believers) intercedes for us to the Father. The first part of Romans 8:26 says: “Likewise the Spirit also helpeth our infirmities: for we know not what we should pray for as we ought.” He fully understands our needs and tells the Father what they are with groanings that can’t be told to us.

The Holy Spirit which lives in us (believers), also for example, “comes in” and gives us the “right” words to say when witnessing to someone else, etc. As the Lord told His disciples: “But when they shall lead you, and deliver you up, take no thought beforehand what ye shall speak, neither do ye premeditate: but whatsoever shall be given you in that hour, that speak ye: for it is not ye that speak, but the Holy Spirit” (Mark 13:11).