These two clauses have similar meanings and are used together to emphasize that God has heard his prayer. Alternate translation: "But God has truly heard my prayer" (See: [[rc://en/ta/man/translate/figs-parallelism]])
Here the author's prayer is given the personal quality of having a voice. Alternate translation: "my prayer" (See: [[rc://en/ta/man/translate/figs-personification]])