To some, it is more than a name, I’ll say, so they have no shame to call it out in the time of need to do so. The Name of the Messiah is a watchtower, calling all lost ships of souls to a relationship with the FATHER who is not only Fort but the Island High Land above seas of torment.
In a sea of crowd-opinion and options of saving, a messiah is one voice louder than others showing the way because they are aware of the way out. The true test of a messiah is found in their ability to be right or be wrongly perceived.
This command says don’t take likely the purpose of your redemption. Don’t take for granted the reason of your initiation into eternal life by the sacrifice of HIS love.
So for Pharaoh, it was GOD's way of stretching his doubt to its limits; how far could his query of GOD go? However, Pharaoh did believe. In the moment of torment, in the evidence that these things were by the hand of GOD, Pharaoh believed.
And the authority of GOD is found in the minority of truth which is not the majority of sooth against the works of truth.