Luke 1:11

And an angel of the Lord appeared to him, standing at the right of the altar of incense.

Luke 1:19

The angel answered, "I am Gabriel. I stand in the very presence of God. I have been sent to speak to you and to tell you this good news.

Luke 1:28

And the angel went into the town and said to her, "Good morning, favored woman! The Lord be with you!"

Luke 2:10

The angel said to them, "Do not be frightened, for I bring you good news of a great joy that is to be felt by all the people,

Acts 5:19

But an angel of the Lord opened the jail doors in the night and let them out, and said to them,

Acts 10:3-4

One afternoon, about three o'clock, he had a vision, and distinctly saw an angel of God come into his room and say to him, "Cornelius!"

Hebrews 1:14

Are not the angels all spirits in service, whom he sends on his errands for the good of those who are destined to possess salvation?

Revelation 8:3-4

Then another angel with a gold censer came and stood at the altar, and he was given a great quantity of incense so that he might mingle it with the prayers of all the saints on the altar of gold that stood before the throne.

Revelation 9:13

Then the sixth angel blew his trumpet, and I heard a voice from the corners of the altar of gold that was before God

Treasury of Scripture Knowledge

Summary

And there appeared unto him an angel of the Lord standing on the right side of the altar of incense.

Bible References

Appeared

Luke 1:19
The angel answered, "I am Gabriel. I stand in the very presence of God. I have been sent to speak to you and to tell you this good news.
Luke 2:10
The angel said to them, "Do not be frightened, for I bring you good news of a great joy that is to be felt by all the people,
Acts 10:3
One afternoon, about three o'clock, he had a vision, and distinctly saw an angel of God come into his room and say to him, "Cornelius!"
Hebrews 1:14
Are not the angels all spirits in service, whom he sends on his errands for the good of those who are destined to possess salvation?

The altar

Revelation 8:3
Then another angel with a gold censer came and stood at the altar, and he was given a great quantity of incense so that he might mingle it with the prayers of all the saints on the altar of gold that stood before the throne.
Revelation 9:13
Then the sixth angel blew his trumpet, and I heard a voice from the corners of the altar of gold that was before God