"Only Daddy That'll Walk The Line" is a song written and performed by Waylon Jennings. It was released in 1968 as a single and later included on his album of the same name. The lyrics describe a relationship where the narrator feels taken for granted and disrespected by their partner. The person they are addressing has been stepping on their toes, crossing boundaries, and playing games with their emotions. The frustration and weariness of the narrator are evident throughout the song. In the bridge of the song, Jennings emphasizes that since the beginning of their relationship, the person he is addressing promised that he was the only man in their world. However, their actions now contradict those promises. The overarching message of the song is that the narrator's patience is running out, and they want their partner to understand the consequences of their behavior. They are tired of working while the other person plays around and messes with their mind. The narrator wants their partner to reflect on their actions and realize that they have the only person who will tolerate their behavior, but this tolerance is not limitless. Overall, "Only Daddy That'll Walk The Line" portrays the frustration and disillusionment of a relationship where one person feels undervalued and taken for granted. The song showcases Jennings' distinctive vocal style and highlights his ability to convey raw emotion in his music.