Speak
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.
Genesis 49:10-11
10
The scepter will not depart from Judah, nor the ruler's staff from between his feet, until he comes to whom it belongs. To him will the obedience of the peoples be.
11
Binding his foal to the vine, his donkey's colt to the choice vine; he has washed his garments in wine, his robes in the blood of grapes.
