en_tn/psa/021/004.md

He asked you for life; you gave it to him

The abstract noun "life" can be stated as a verb. Alternate translation: "He asked that you cause him to live for a long time; you caused it to happen" (See: rc://en/ta/man/translate/figs-abstractnouns)

the length of his days forever and ever

Possible meanings are 1) a very long life or 2) eternal life or 3) a long line of descendants.