Our relationship with God will determine how we pray the "Our Father."
Three stages of our relationship with God:
Is fear the driving force of our relationship with God? Are we afraid that we will be punished if we don't obey? Are we afraid that God will not provide for our needs?
Do we something good expecting a reward or blessing from God? Do we always ask something from God when we pray? Do we want to get more from God than what we can give to Him?
Do we do everything out of love for God who is our Father? Do we give more to God than what He can give to us?
"He no longer stands before God as a slave, in servile fear, or as a mercenary looking for wages, but as a son responding to the love of him who "first loved us": If we turn away from evil out of fear of punishment, we are in the position of slaves. If we pursue the enticement of wages, . . . we resemble mercenaries. Finally if we obey for the sake of the good itself and out of love for him who commands . . . we are in the position of children." - CCC 1828