My Bible Verse - Fill in the Blanks (Hint: Zechariah 4:6)

Hey!
Can you fill in the blanks? 
This is another short verse. 
And I tell you, it's a good one!

"Not by ___ nor by power, but by my ___."

                     Hint: Zechariah 4:6

(It's where our real strength to do anything comes from! Cool, Huh?)