The word “Father” with a capital “F” is taken to be equivalent to “God” by Christians, or more specifically to the Invisible God. It is indeed wrong to say that Jesus sits at the right hand of the Father, in fact I’m certain as Jesus gets more sophisticated in His presentation (and His audience is not benighted), He is going to stop saying “Father” and they will know they are with the best part of God, which is to say the embodied expression of God’s Personality. The idea of a “Father” keys into human weakness, as they fail to think well or at all about authorities. To them a father is a grumpy guy who nevertheless tends to stay in the background and does not look too closely, exactly where they want God to be. In truth God is neither male nor female, and “father” is a rather poor idea about Him.