Ecclesiastes 5:6

Do not allow your mouth to cause your flesh to sin; do not say before the angel that it was an error. Why should God be angry at your voice and destroy the work of your hands?

1 Corinthians 11:10

For this reason the woman ought to have authority on her head because of the angels.

Genesis 48:16

the Angel who 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 like the fishes into a multitude in the midst of the earth.

Leviticus 5:4-6

Or if a soul swears, pronouncing with his lips to do evil or to do good, whatever it is that a man speaks rashly with an oath, and it is hidden from him, and he knows, then he shall be guilty of one of these.

Leviticus 27:9-10

And if it is an animal of which they bring an offering to Jehovah, all that one gives of such to Jehovah shall be holy.

Numbers 15:25

And the priest shall make an atonement for all the congregation of the sons of Israel, and it shall be forgiven them, for it is ignorance. And they shall bring their offering, a sacrifice made by fire to Jehovah, and their sin offering before Jehovah, for their ignorance.

Ecclesiastes 5:1-2

Guard your steps when you go to the house of God, and be more ready to hear than to give the sacrifice of fools. For they do not know that they are doing evil.

Hosea 12:4-5

Yes, he wept and cried to Him, and he had power over the Angel and overcame. He found him in Bethel, and there He spoke with us,

Haggai 1:9-11

You looked for much, and behold, little! And when you brought it home, then I blew on it. Why, says Jehovah of Hosts? Because of My House that is waste, and you, each man runs to his own house.

Haggai 2:14-17

And Haggai answered and said, So is this people, and so is this nation before Me, says 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 guard knowledge, and they should seek the Law at his mouth; for he is the messenger of Jehovah of Hosts.

Malachi 3:1

Behold, I will send My messenger, and He will clear the way before Me. And Jehovah, whom you seek, shall suddenly come to His temple, even the Angel of the Covenant, in whom you delight. Behold, He comes, says Jehovah of Hosts.

Acts 7:30-35

And forty years being fulfilled to him, the Angel of the Lord appeared to him in the desert of Mount Sinai in a flame of fire in a bush.

1 Corinthians 3:13-15

each one's work shall be revealed. For the Day shall declare it, because it shall be revealed by fire; and the fire shall try each one's work as to what kind it is.

1 Timothy 5:21

I charge you before God and the Lord Jesus Christ, and the elect angels, that you guard these things without prejudice, doing nothing by partiality.

Hebrews 1:14

Are they not all ministering spirits, sent forth to minister for those who shall be heirs of salvation?

James 1:26

If anyone thinks to be religious among you, yet does not bridle his tongue, but deceives his own heart, this one's religion is vain.

James 3:2

For in many things we all offend. If anyone does not offend in word, the same is a full-grown man, able also to bridle the whole body.

2 John 1:8

Look to yourselves, so that we may not lose those things which we worked out, but that we may 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
Guard your steps when you go to the house of God, and be more ready to hear than to give the sacrifice of fools. For they do not know that they are doing evil.
James 1:26
If anyone thinks to be religious among you, yet does not bridle his tongue, but deceives his own heart, this one's religion is vain.
James 3:2
For in many things we all offend. If anyone does not offend in word, the same is a full-grown man, able also to bridle the whole body.

Before

Leviticus 5:4
Or if a soul swears, pronouncing with his lips to do evil or to do good, whatever it is that a man speaks rashly with an oath, and it is hidden from him, and he knows, then he shall be guilty of one of these.
Genesis 48:16
the Angel who 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 like the fishes into a multitude in the midst of the earth.
Hosea 12:4
Yes, he wept and cried to Him, and he had power over the Angel and overcame. He found him in Bethel, and there He spoke with us,
Malachi 2:7
For the priest's lips should guard knowledge, and they should seek the Law at his mouth; for he is the messenger of Jehovah of Hosts.
Malachi 3:1
Behold, I will send My messenger, and He will clear the way before Me. And Jehovah, whom you seek, shall suddenly come to His temple, even the Angel of the Covenant, in whom you delight. Behold, He comes, says Jehovah of Hosts.
Acts 7:30
And forty years being fulfilled to him, the Angel of the Lord appeared to him in the desert of Mount Sinai in a flame of fire in a bush.
1 Corinthians 11:10
For this reason the woman ought to have authority on her head because of the angels.
1 Timothy 5:21
I charge you before God and the Lord Jesus Christ, and the elect angels, that you guard these things without prejudice, doing nothing by partiality.
Hebrews 1:14
Are they not all ministering spirits, sent forth to minister for those who shall be heirs of salvation?

It was

Leviticus 5:4
Or if a soul swears, pronouncing with his lips to do evil or to do good, whatever it is that a man speaks rashly with an oath, and it is hidden from him, and he knows, then he shall be guilty of one of these.
Leviticus 27:9
And if it is an animal of which they bring an offering to Jehovah, all that one gives of such to Jehovah shall be holy.

Destroy

Haggai 1:9
You looked for much, and behold, little! And when you brought it home, then I blew on it. Why, says Jehovah of Hosts? Because of My House that is waste, and you, each man runs to his own house.
Haggai 2:14
And Haggai answered and said, So is this people, and so is this nation before Me, says Jehovah. And so is every work of their hands; and that which they offer there is unclean.
1 Corinthians 3:13
each one's work shall be revealed. For the Day shall declare it, because it shall be revealed by fire; and the fire shall try each one's work as to what kind it is.
2 John 1:8
Look to yourselves, so that we may not lose those things which we worked out, but that we may receive a full reward.