Luke 1:11 KJV
And there appeared unto him an angel of the Lord standing on the right side of the altar of incense.
Luke 1:11, King James Version
In context
10 And the whole multitude of the people were praying without at the time of incense.
11 And there appeared unto him an angel of the Lord standing on the right side of the altar of incense.
12 And when Zacharias saw him, he was troubled, and fear fell upon him.