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.
Arcana Coelestia # 2925
2925. 'From burying your dead' means in order that they might emerge from night and be raised up. This is clear from the meaning of 'burying' and 'one who is dead' as being raised up from night as regards goods and truths of faith, dealt with just above in 2923, where the same words occur.