There are no evil angels, in the sense of angels who commit wrong, but from time to time God requires His angels to bring about something which from a human point of view is an evil result, which might be what is meant by the term. In 2 Samuel 24:14-17 King David has to stand by and watch while the angel of God brings a plague on Israel, killing seventy thousand of his people.

In the example below, God inspired an evil action on the part of Saul. It contributed to God's overall good purpose with David: "The next day an evil spirit from God came forcefully upon Saul. He was prophesying in his house, while David was playing the harp, as he usually did. Saul had a spear in his hand and he hurled it, saying to himself, 'I'll pin David to the wall.'" (1 Samuel 18:10-12; see also Psalm 78:49).

On another occasion God asks a 'spirit' to deceive the wicked king Ahab, by making his false prophets give him wrong advice, so that Ahab goes to his death in battle (in 1 Kings 22:19-25; 2 Chronicles 18:22-34).

Abraham
Acts of the Apostles
Adam
Adoption
Affliction
Age, Aion
Almighty God
Altar
Amen
Angel
  1. Human angels
  2. "The angels who sinned"
  3. Immortal angels
  4. "Fallen angels"
  5. "Evil angels"
Anger
Anointing
Antichrist
Apocrypha
Apostasy
Apostle
Archangel
Ark
  1. Ark constructed by Noah
  2. Ark of the Covenant
Armageddon
Ascension
Assyria
Astrology
Atonement