What if there was a wealthy man who decided the town you lived in needed a fire department. He purchased all the equipment and hired and trained his son to be a fireman.
Your house is engulfed in flames and you are trapped inside. The son comes and uses the equipment and training the father provided to rescue you from sure death.
Who would be your savior?
The son for risking his life.
The father for providing the training and equipment.
A combination of the two?
I contend both can say they are your savior as can a Father and Son in the scriptures you provided and be two distinct entities.