Angels, in a variety of religions, are regarded as spirits. They are often depicted as messengers of God in the Hebrew and Christian Bibles and the Quran. The English word angel is derived from the Greek ἄγγελος (aggelos), a translation of מלאך (mal'akh) in the Hebrew Bible (Tanakh); a similar term, ملائكة (Malāīkah), is used in the Qur'an. The Hebrew and Greek words originally meant messenger, and depending on the context may refer either to a human messenger (possibly a prophet or priest, such as Malachi, "my messenger", but also for more mundane characters, as in the Greek superscription that the Book of Malachi was written "by the hand of his messenger" (ἀγγήλου)) or to a supernatural messenger, such as the "Mal'akh YHWH," who (depending on interpretation) is either a messenger from God, an aspect of God (such as the Logos), or God Himself as the messenger (the "theophanic angel.")

The term "angel" has also been expanded to various notions of spirits found in many other religious traditions. Other roles of angels include protecting and guiding human beings, and carrying out God's tasks.

A benediction (Latin: bene, well + dicere, to speak) is a short invocation for divine help, blessing and guidance, usually at the end of worship service.

Judaism developed ritualised benedictions (Berachot) for use at the Temple of Jerusalem, and the home. These Berachot often took the form of a blessing upon the fulfillment of a mitzvah (divine commandment). The most important benediction was the Priestly Blessing pronounced by the kohenim (priests descended from Aaron), as found in Numbers 6:23-27.

From the earliest church, Christians adopted ceremonial benedictions into their liturgical worship, particularly at the end of a service. Such benedictions have been regularly practiced both in the Christian East and West. At the time of the Reformation, Protestants abandoned many of the benedictions of the Roman Catholic Church, including the Apostolic Benediction made by the Pope and his delegates, the "last blessing" of the dying, and virtually all benedictions of inanimate objects. However, the Anglican church retained the principle of benediction, and a benediction or blessing ends most Anglican services.