Like "say," the word "speak" refers to thoughts and feelings moving from our more internal spiritual levels to our more external ones -- and ultimately from the Lord, who is in a sense the most internal spiritual level of all. This is generally called "influx" and "perception" in the Writings, meaning they are thoughts and feelings that flow in in a complete way from the Lord, rather than being things we have to think about and figure out. On a number of occasions "speak" and "say" are used together; in these cases "speak" refers more to intellectual instruction in matters of thought and "say" refers more to feelings and affections that flow in directly.

154. How the States of Angels in Heaven Change

By "the changes of angels' states," we mean their changes in regard to love and faith and therefore in regard to wisdom and intelligence - to the state of their life, that is. States are attributes of life and of matters that pertain to life; and since angelic life is a life of love and faith and thereby of wisdom and intelligence, states are attributes of these, and we talk about states of love and faith and states of wisdom and intelligence. Now we need to describe how these states change for angels.