What is speech in spirit?

Speech is constant—or at least tends towards continuity. It is the outward expression of the spirit, therefore, it is constant, like the expression on a man’s face, which is the outcome of his constant character. When a spirit is purified and becomes holy, that is—one, united in himself, He ceases to cry—Holy, holy, holy. 

Not holy am I, but holy art thou, O Lord, towards whom my being ever tends.