The sun will turn into darkness

"The sun will no longer give light"

the moon into blood

Here the word "blood" refers to the color red. You can supply the verb for this phrase. Alternate translation: "the moon will turn into blood" or "the moon will become red" or "the moon will become as red as blood" (See: rc://en/ta/man/translate/figs-metonymy and rc://en/ta/man/translate/figs-ellipsis)