`Wo to you, Scribes and Pharisees, hypocrites! because ye shut up the reign of the heavens before men, for ye do not go in, nor those going in do ye suffer to enter.
And they were not knowing this saying, and it was veiled from them, that they might not perceive it, and they were afraid to ask him about this saying.
What then is it? I will pray with the spirit, and I will pray also with the understanding; I will sing psalms with the spirit, and I will sing psalms also with the understanding;