Ecclesiastes 5:6

Suffer not thy mouth to cause thy flesh to sin; neither say thou before the angel, that is was an error: wherefore should God be angry at thy voice, and destroy the work of thy hands?

1 Corinthians 11:10

for this cause ought the woman to have a sign of authority on her head, because of the angels.

Genesis 48:16

the angel who hath redeemed me from all evil, bless the lads; and let my name be named on them, and the name of my fathers Abraham and Isaac; and let them grow into a multitude in the midst of the earth.

Leviticus 5:4-6

Or if any one swear rashly with his lips to do evil, or to do good, whatsoever it be that a man shall utter rashly with an oath, and it be hid from him; when he knoweth of it, then he shall be guilty in one of these things .

Leviticus 27:9-10

And if it be a beast, whereof men offer an oblation unto Jehovah, all that any man giveth of such unto Jehovah shall be holy.

Numbers 15:25

And the priest shall make atonement for all the congregation of the children of Israel, and they shall be forgiven; for it was an error, and they have brought their oblation, an offering made by fire unto Jehovah, and their sin-offering before Jehovah, for their error:

Ecclesiastes 5:1-2

Keep thy foot when thou goest to the house of God; for to draw nigh to hear is better than to give the sacrifice of fools: for they know not that they do evil.

Hosea 12:4-5

yea, he had power over the angel, and prevailed; he wept, and made supplication unto him: he found him at Beth-el, and there he spake with us,

Haggai 1:9-11

Ye looked for much, and, lo, it came to little; and when ye brought it home, I did blow upon it. Why? saith Jehovah of hosts. Because of my house that lieth waste, while ye run every man to his own house.

Haggai 2:14-17

Then answered Haggai and said, So is this people, and so is this nation before me, saith Jehovah; and so is every work of their hands; and that which they offer there is unclean.

Malachi 2:7

For the priest's lips should keep knowledge, and they should seek the law at his mouth; for he is the messenger of Jehovah of hosts.

Malachi 3:1

Behold, I send my messenger, and he shall prepare the way before me: and the Lord, whom ye seek, will suddenly come to his temple; and the messenger of the covenant, whom ye desire, behold, he cometh, saith Jehovah of hosts.

Acts 7:30-35

And when forty years were fulfilled, an angel appeared to him in the wilderness of Mount Sinai, in a flame of fire in a bush.

1 Corinthians 3:13-15

each man's work shall be made manifest: for the day shall declare it, because it is revealed in fire; and the fire itself shall prove each man's work of what sort it is.

1 Timothy 5:21

I charge thee in the sight of God, and Christ Jesus, and the elect angels, that thou observe these things without prejudice, doing nothing by partiality.

Hebrews 1:14

Are they not all ministering spirits, sent forth to do service for the sake of them that shall inherit salvation?

James 1:26

If any man thinketh himself to be religious, while he bridleth not his tongue but deceiveth his heart, this man's religion is vain.

James 3:2

For in many things we all stumble. If any stumbleth not in word, the same is a perfect man, able to bridle the whole body also.

2 John 1:8

Look to yourselves, that ye lose not the things which we have wrought, but that ye receive a full reward.

Treasury of Scripture Knowledge

Summary

Suffer not thy mouth to cause thy flesh to sin; neither say thou before the angel, that it was an error: wherefore should God be angry at thy voice, and destroy the work of thine hands?

Bible References

Thy mouth

Ecclesiastes 5:1
Keep thy foot when thou goest to the house of God; for to draw nigh to hear is better than to give the sacrifice of fools: for they know not that they do evil.
James 1:26
If any man thinketh himself to be religious, while he bridleth not his tongue but deceiveth his heart, this man's religion is vain.
James 3:2
For in many things we all stumble. If any stumbleth not in word, the same is a perfect man, able to bridle the whole body also.

Before

Leviticus 5:4
Or if any one swear rashly with his lips to do evil, or to do good, whatsoever it be that a man shall utter rashly with an oath, and it be hid from him; when he knoweth of it, then he shall be guilty in one of these things .
Genesis 48:16
the angel who hath redeemed me from all evil, bless the lads; and let my name be named on them, and the name of my fathers Abraham and Isaac; and let them grow into a multitude in the midst of the earth.
Hosea 12:4
yea, he had power over the angel, and prevailed; he wept, and made supplication unto him: he found him at Beth-el, and there he spake with us,
Malachi 2:7
For the priest's lips should keep knowledge, and they should seek the law at his mouth; for he is the messenger of Jehovah of hosts.
Malachi 3:1
Behold, I send my messenger, and he shall prepare the way before me: and the Lord, whom ye seek, will suddenly come to his temple; and the messenger of the covenant, whom ye desire, behold, he cometh, saith Jehovah of hosts.
Acts 7:30
And when forty years were fulfilled, an angel appeared to him in the wilderness of Mount Sinai, in a flame of fire in a bush.
1 Corinthians 11:10
for this cause ought the woman to have a sign of authority on her head, because of the angels.
1 Timothy 5:21
I charge thee in the sight of God, and Christ Jesus, and the elect angels, that thou observe these things without prejudice, doing nothing by partiality.
Hebrews 1:14
Are they not all ministering spirits, sent forth to do service for the sake of them that shall inherit salvation?

It was

Leviticus 5:4
Or if any one swear rashly with his lips to do evil, or to do good, whatsoever it be that a man shall utter rashly with an oath, and it be hid from him; when he knoweth of it, then he shall be guilty in one of these things .
Leviticus 27:9
And if it be a beast, whereof men offer an oblation unto Jehovah, all that any man giveth of such unto Jehovah shall be holy.

Destroy

Haggai 1:9
Ye looked for much, and, lo, it came to little; and when ye brought it home, I did blow upon it. Why? saith Jehovah of hosts. Because of my house that lieth waste, while ye run every man to his own house.
Haggai 2:14
Then answered Haggai and said, So is this people, and so is this nation before me, saith Jehovah; and so is every work of their hands; and that which they offer there is unclean.
1 Corinthians 3:13
each man's work shall be made manifest: for the day shall declare it, because it is revealed in fire; and the fire itself shall prove each man's work of what sort it is.
2 John 1:8
Look to yourselves, that ye lose not the things which we have wrought, but that ye receive a full reward.

American Standard Version Public Domain