3530. 'And I shall bring upon myself a curse and not a blessing' means a separation. This is clear from the meaning of 'a curse' as a separation or turning away from good, dealt with in 245, 379, 1423, and from the meaning of 'blessing' as being joined to good, dealt with in 3504, 3514.

1423. 'And curse him who curses you' means unhappiness to those who do not acknowledge Him. This is clear from the meaning of 'being cursed' and of 'cursing' as turning away from the Lord, as shown already in 245, 379, and therefore as not acknowledging Him; for those who do not acknowledge turn themselves away. Thus 'cursing' here implies all those things that are the contrary of what blessing implies.