Trace’s message to Billy Ray on Jan. 22 — which had him stating, “You’re not healthy, Dad and everyone is noticing it,” and “As I write this with tears in my eyes, I hope you realize this message only comes from a place of love and also fear that the world may lose you far too soon” — came after Billy Ray’s widely criticized performance at Donald Trump’s inauguration Liberty Ball, which was plagued by technical difficulties and eventually had him singing a capella to the crowd.

On Saturday (Jan. 25), Trace published another Instagram letter, claiming Billy Ray had threatened him with legal action following the public plea. “Dad my message was beyond loving,” Trace wrote in the note, referencing the message from a few days prior. “I could have been extremely honest about a lot more but I don’t want to put your business out there like that. But for you to threaten me with legal action for wanting you to get help is a disgrace. Pappy is looking down at you with such disappointment I can assure you. You should be ashamed of yourself. I will always love you but I no longer respect you as a man. Everyone close to you is terrified to tell you how they really feel. I’m not. Get help.”

Billy Ray and ex-wife Tish are parents to Brandi, 37, and Trace, 35, both of whom Billy Ray adopted after he’d married Tish. Together, they also share Miley, 31; Braison, 30, and Noah, 25. He’s also the parent of 32-year-old son Christopher, his child with ex-girlfriend Kristin Luckey