Arcana Coelestia # 9053
9053. 'Hand for hand' means if anything of the power of spiritual truth is injured or wiped out by them. This is clear from the meaning of 'hand' as the power that comes from truth, 3091, 3387, 4931-4937, 6292, 6947, 7188, 7189, 7518, 7673, 8050, 8153, 8281, [in particular] the power that comes from spiritual truth, 5327, 5328, 7011.
Say
As with many common verbs, the meaning of “to say” in the Bible is highly dependent on context. Who is speaking? Who is hearing? What is it about? Is it a command, a message, an apology, instruction? All these things enter into the meaning of “say.” In general, though, “saying” has to do with sharing truth at various levels -- from the most exalted power people can have to perceive the Lord's desires directly to the most basic of orders issued to people at their lowest.