The Diploma thesis Angels in the Bible. The role of angels in biblical texts tries to describe the role of angels in the Bible based on the contexts containing the term angel. Then it analyzes and briefly characterizes individual texts of the Old and New Testament in which the term angel occures. With the help of this analysis it is possible to observe what role did the angels serve: they announced the birth of a son, God's election, God's commands, they become the life savers, leaders and protectors of the Israel nation and executors of God's punishment. An angel - interpreter acts in the apocalyptic texts. In the New Testament, angels also announce the birth of Jesus and John the Baptist, announce the God's will to people, they announce the resurrection and protect the church similarly to Israel. The most angels figure in the Book of Revelation and they play all roles known from apocalyptic literature: angel - interpreter, angel - guardian, as well as angels who participate on the heavenly council and effect the judgement according to the God's commands.