Verses with the word altar in the New Testament (21 verses):

Matthew 5:23
Therefore if thou bring thy gift to the altar, and there rememberest that thy brother hath ought against thee;

Matthew 5:24
Leave there thy gift before the altar, and go thy way; first be reconciled to thy brother, and then come and offer thy gift.

Matthew 23:18
And, Whosoever shall swear by the altar, it is nothing; but whosoever sweareth by the gift that is upon it, he is guilty.

Matthew 23:19
Ye fools and blind: for whether is greater, the gift, or the altar that sanctifieth the gift?

Matthew 23:20
Whoso therefore shall swear by the altar, sweareth by it, and by all things thereon.

Matthew 23:35
That upon you may come all the righteous blood shed upon the earth, from the blood of righteous Abel unto the blood of Zacharias son of Barachias, whom ye slew between the temple and the altar.

Luke 1:11
And there appeared unto him an angel of the Lord standing on the right side of the altar of incense.

Luke 11:51
From the blood of Abel unto the blood of Zacharias which perished between the altar and the temple: verily I say unto you, It shall be required of this generation.

Acts 17:23
For as I passed by, and beheld your devotions, I found an altar with this inscription, TO THE UNKNOWN GOD. Whom therefore ye ignorantly worship, him declare I unto you.

1 Corinthians 9:13
Do ye not know that they which minister about holy things live of the things of the temple? and they which wait at the altar are partakers with the altar?

1 Corinthians 10:18
Behold Israel after the flesh: are not they which eat of the sacrifices partakers of the altar?

Hebrews 7:13
For he of whom these things are spoken pertaineth to another tribe, of which no man gave attendance at the altar.

Hebrews 13:10
We have an altar, whereof they have no right to eat which serve the tabernacle.

James 2:21
Was not Abraham our father justified by works, when he had offered Isaac his son upon the altar?

Revelation 6:9
And when he had opened the fifth seal, I saw under the altar the souls of them that were slain for the word of God, and for the testimony which they held:

Revelation 8:3
And another angel came and stood at the altar, having a golden censer; and there was given unto him much incense, that he should offer it with the prayers of all saints upon the golden altar which was before the throne.

Revelation 8:5
And the angel took the censer, and filled it with fire of the altar, and cast it into the earth: and there were voices, and thunderings, and lightnings, and an earthquake.

Revelation 9:13
And the sixth angel sounded, and I heard a voice from the four horns of the golden altar which is before God,

Revelation 11:1
And there was given me a reed like unto a rod: and the angel stood, saying, Rise, and measure the temple of God, and the altar, and them that worship therein.

Revelation 14:18
And another angel came out from the altar, which had power over fire; and cried with a loud cry to him that had the sharp sickle, saying, Thrust in thy sharp sickle, and gather the clusters of the vine of the earth; for her grapes are fully ripe.

Revelation 16:7
And I heard another out of the altar say, Even so, Lord God Almighty, true and righteous are thy judgments.