This is direct quotation. It can also be stated as an indirect quotation: “God promised to never again curse the ground…people are sinful from the time they are children.” (See: [[rc://en/ta/man/translate/figs-quotations]])
This means, “not ever again” or, “not again at any time” or, “truly not again”. Examples: “I will not ever again curse the ground” or, “I will not curse the ground again at any time” or, “I will truly not curse the ground again”.