"By placing this as the first petition of the Lord's Prayer, Jesus was giving it a place of priority. He was saying that a proper attitude toward God's name is the basis of everything, because how we live before God is determined by our attitude toward Him and our view of who He is.
. . . Before God's kingdom can come to earth the way it has already come to heaven, and before His will can be done on earth the way it is done right now in heaven, the name of God must be hallowed." (R.C. Sproul, The Prayer of the Lord, 36-37)