Before one can begin to understand many of the attributes of angels and who they are, it is necessary to understand just what an angel is. Angels are considered to be the ones who do God's commands, who bring his Word to the earth and are the bringers-about of God's will. Throughout the Bible, it is not God directly who speaks to most of his followers, but angels sent by him. It is the angels who brings about plague and famine and destruction when God is ired, and angels who bring hope, safety and peace to those who please him.
Angels are able to take on a host of forms and shapes.
Also, they take on the forms of other objects such as the angel inhabiting the burning bush. However, when we think of angels, the most common image is that of a human form. There they are often imagined as being white garbed beings, with wings and halos. The wings depict the spiritual nature of angels, allowing them to travel through the ether as well as being a symbol of divine authority. The halo as well acts as such a symbol, denoting the wisdom of the divine emanating from the angels head in a glorious wreath of light.