Arcana Coelestia # 10495
10495. 'So that He may bestow a blessing on you today' means the reception of Divine Truth from the Word, and being joined thereby to the Lord. This is clear from the general meaning of 'a blessing' as that which the Lord imparts to a person; and since all that the Lord imparts has connection with the good of love and the truth of faith, these and all that springs from them are what is meant by 'a blessing'. So here the reception of Divine Truth from the Word is meant, and being joined thereby to the Lord, see 1096, 2846, 3017, 3406, 4216, 4981, 6298, 8674, 8939. As regards the meaning of 'a blessing' as being joined to the Lord, see 3504, 3514, 3530, 3565, 3584, 6091, 6099. The implications of all this have been shown in what has gone before; and regarding the Word, that it is the means by which the Lord is joined to mankind, and heaven is joined to the world, see 10452.
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.