The answer is: David

Psalms 72:20 - David, known as a man after God's own heart (1 Samuel 13:14), wrote approximately 73 of the 150 Psalms, showcasing his deep relationship with God through prayer and worship. His profound expressions of sorrow, praise, and repentance resonate throughout Scripture, forming a template for heartfelt communication with the Divine.

David's influence on the Psalms isn't just about sheer numbers—it's about the emotional depth and spiritual intensity that permeates the texts he authored. Imagine a shepherd boy who rose to be king, a figure experiencing the full spectrum of human life, from the highs of victory to the depths of despair. This rich tapestry of experience is what makes the Psalms so relatable even today. Just as David overcame trials, his writings provide solace to those facing their own struggles.

Interestingly, the word "Selah," often found in the Psalms, remains shrouded in mystery. Scholars debate its meaning; could it signal a musical interlude or a moment of reflection? Whatever it signifies, it invites those reading the Psalms to pause and absorb the weight of the words.

Moreover, while David wrote a predominant number of Psalms, others were penned by figures like Asaph and the sons of Korah, showcasing a diverse chorus of voices within the same spiritual context. This multiplicity aligns well with the notion that while one can have a personal path to the Divine (like David), there’s also a communal aspect of worship expressed through collective heartfelt songs.

Psalms serves as a divine manual that addresses a vast array of human emotions—it teaches us worship is not just about joy, but also about lament and seeking forgiveness. This multifaceted approach allows modern readers to find resonance with phrases that stack emotions as high as a mountain and describe the valleys just as vividly, preserving the timeless nature of human experience.