What are the Prophetic hadiths that encourage humility and devotion in prayer?

If the question is about the ruling on placing the hands in prayer (Qabd), then the Sunnah is to place the right hand over the left when standing, based on the hadith of Sahl bin Sa'd: "The people were commanded that a man should place his right hand on his left forearm in prayer." And based on the hadith of Ibn Mas'ud: "The Prophet (peace be upon him) saw me placing my left hand on my right hand, so he removed it and placed my right hand on my left." And based on the hadith of Wa'il bin Hujr: "He placed his right hand over his left," meaning in prayer.