What is the genus maiestaticum? Theosis in action!
In Christ our Lord, it is the confession that because of the personal union, the divine nature communicated its energies to the human nature, truly divinizing it, without the human nature becoming itself the divine nature. The iron placed in the fire takes on the attributes of fire without ever essentially ceasing to be iron.
So too with the Christian, a similar thing happens, though not through personal union but through mystical union which is accomplished via faith. The God-Man Christ communicates to us His divine energies, thus divinizing us without those properties of His divine nature ever becoming essential characteristics of the human nature.
How far does such divinization reach? Luther in Great Galatians:
"The one who has faith is a completely divine man, a son of God, the inheritor of the universe. He is the victor over the world sin, death, and the devil. Hence he cannot be praised enough... Therefore the Abraham who has faith fills heaven and earth; thus every Christian fills heaven and earth by his faith." (LW 26:247,248)
The implications of the above for the intercession of the saints is significant, it seems to me, for whom it is true that "they know" even as they have been known.