Read Mark 10:40 Using Other Translations
But to sit on my right hand and on my left hand is not mine to give; but it shall be given to them for whom it is prepared.
but to sit at my right hand or at my left is not mine to grant, but it is for those for whom it has been prepared."
But I have no right to say who will sit on my right or my left. God has prepared those places for the ones he has chosen.”