Clamarte comes from the verb clamar, meaning 'to cry out', 'to implore', or 'to call out'. It's a more formal and intense word than simply 'to ask'.
In the song, Juan Luis Guerra sings, "Si antes de yo clamarte, Conoces mi petición" (Even before I cry out to you, You know my request). He uses this word to convey a deep, heartfelt plea or communication with God, emphasizing the spiritual and intimate nature of his conversation rather than a casual request.
Juan Luis Guerra's "Tan Sólo He Venido" is such a beautiful song about wanting to connect with God on a personal level, beyond just asking for things. He starts by saying, "No he venido a pedirte / Como suelo, Señor" [I haven't come to ask you / As I usually do, Lord], acknowledging that God already knows his needs anyway. Instead, he just wants to listen, walk around, and dedicate a song. It's all about just being there.
The chorus really drives this home: "Tan solo he venido / A estar contigo / A ser tu amigo / A compartir con mi Dios" [I have only come / To be with you / To be your friend / To share with my God]. He wants to adore God and give thanks for everything that's been done for him. He even asks some fun, curious questions like, "¿Cómo es la piel del sol?" [What is the skin of the sun like?]. It's a sweet, intimate conversation with God, focusing on friendship and gratitude rather than requests.