Romans 8:26 In the same way, the Spirit also helps our weaknesses, for we don't know how to pray as we ought. But the Spirit himself makes intercession for us with groanings which can't be uttered. (See RSV)
Lamentations 1:8 Jerusalem has grievously sinned; therefore she is become as an unclean thing; all who honored her despise her, because they have seen her nakedness: yes, she sighs, and turns backward. (WEB)
Lamentations 1:22 Let all their wickedness come before you; Do to them, as you have done to me for all my transgressions: For my sighs are many, and my heart is faint. (WEB KJV JPS ASV DBY WBS YLT)