Arcana Coelestia #8894
8894. 'Therefore Jehovah blessed the seventh day' means that at that time the heavenly marriage from the Lord exists. This is clear from the meaning of 'blessing' as undergoing rearrangement into heavenly order and being endowed with the good of love, dealt with in 3017, 3406, 4981, 8674; and from the meaning of 'the seventh day' as the state of celestial love, dealt with in 84-87, thus the heavenly marriage, since the heavenly marriage is goodness and truth joined together, which is heaven in a person. For the meaning of 'the sabbath' as this marriage, see 8495, 8510.
Arcana Coelestia #8674
8674. 'And Jethro said, Blessed be Jehovah' means that the Lord is the source of all good. This is clear from the meaning of 'blessed be Jehovah' as the Lord's being the source of all good, dealt with in 1096, 1422, 3140, 'Jehovah' being the Lord, see above in 8671. The reason why 'blessed be Jehovah' means that the Lord is the source of all good is that the blessing which man receives holds within it all the good of eternal life, that is, the good of love to the Lord and towards the neighbour, 3406, 4981. Such good is what constitutes eternal life with a person.