# who—because of your great name, your mighty hand, and your outstretched arm—comes

"who hears about your great name, your mighty hand, and your outstretched arm—if he comes" 

# your great name

"your greatness"

# your mighty hand, and your outstretched arm

These two phrases refer to God's power. 

# prays toward this house

Praying toward Yahweh's temple shows that one is praying to Yahweh.