Juramento translates to "oath" or "promise." It's a strong word that carries a sense of solemnity and commitment, making it more impactful than a simple "promise."
In the song, the singer laments, "Como pude acreditar nesse seu juramento?" (How could I believe in your oath/promise?). He uses this word to express his deep regret and disillusionment over a broken vow, highlighting the weight of the commitment that was made and subsequently shattered.
Natanzinho Lima's "Até Você Voltar" is a heartbroken anthem from a guy who's definitely feeling the sting of a breakup. He's sitting alone with a beer, in a house that feels empty without his love, even though it's full of people. It's been a whole year since they first got together, and he's still stuck on that day, wondering if she's forgotten all their big plans – kids, an apartment, even their wedding and honeymoon!
He's pretty blunt about it, saying he was a fool to believe her promises. Now he's alone again, and he'd rather be drunk than fooled by love. He's decided love makes no sense anymore and he's just going to keep living this "bandida" [bad/wicked] life until she comes back. It's a classic tale of a guy trying to cope with a broken heart, drowning his sorrows, and vowing to stay single until his ex returns. You can really feel his pain and frustration!