but by God's Spirit - praise the Lord!

 Then he replied, “This is the word the LORD spoke to Zerubbabel: You won’t succeed by might or by power, but by my Spirit, says the LORD of Armies. (Zechariah 4:6 GW)

 So he said to me, “This is the word of the LORD to Zerubbabel: ‘Not by might nor by power, but by my Spirit,’ says the LORD Almighty. (NIV)

(image background courtesy of shutterstock)