Sits at the right hand of God the Father Almighty
What does this mean?
For us.
Christ is seated at the right hand of the Father for us.
It means that, having received authority from the Father, Christ is Lord to help his saints. As Dr. Luther says:
He ascended into heaven, and sitteth on the right hand of God the Father Almighty.
I believe that he ascended into heaven and has received from the Father power and honor above all angels and creatures; that he accordingly sits at the right hand of God ; that is, that he is king and lord over all that belongs to God, whether it be in heaven, in hell or on earth. For this reason he can help me and all believers in every need, in defiance of all our adversaries and enemies.
Martin Luther, J. N. Lenker trans, Luther’s Two Catechisms Explained by Himself (Minneapolis: The Luther Press, 1908), p. 206.