This gives the term 'king' a human face. What does deliver a king, is God. In my mind, what this says is, don't rely on man for deliverance from God.
In revelation, we are told a new name will be given which will not be known to us.
Revelation 2:17 He who has an ear, let him hear what the Spirit says to the churches. To the one who conquers I will give some of the hidden manna, and I will give him a white stone, with a new name written on the stone that no one knows except the one who receives it.’