'Accuses' in the Bible

Think not that I will accuse you to the Father: there is one who accuses you, Moses, on whom ye trust;

Then I heard a loud voice in heaven say:The salvation and the powerand the kingdom of our Godand the authority of His Messiahhave now come,because the accuser of our brothershas been thrown out:the one who accuses thembefore our God day and night.