Ecclesiastes 5:6

Don't allow your mouth to lead you into sin. Don't protest before the messenger that this was a mistake. Why should God be angry at your voice, and destroy the work of your hands?

1 Corinthians 11:10

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

Genesis 48:16

the angel who has 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. Let them grow into a multitude in the midst of the earth."

Leviticus 5:4-6

"'Or if anyone swears rashly with his lips to do evil, or to do good, whatever it is that a man might utter rashly with an oath, and it is hidden from him; when he knows of it, then he shall be guilty of one of these.

Leviticus 27:9-10

"'If it is an animal, of which men offer an offering to Yahweh, all that any man gives of such to Yahweh becomes holy.

Numbers 15:25

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 offering, an offering made by fire to Yahweh, and their sin offering before Yahweh, for their error:

Ecclesiastes 5:1-2

Guard your steps when you go to God's house; for to draw near to listen is better than to give the sacrifice of fools, for they don't know that they do evil.

Hosea 12:4-5

Indeed, he struggled with the angel, and prevailed; he wept, and made supplication to him. He found him at Bethel, and there he spoke with us,

Haggai 1:9-11

"You looked for much, and, behold, it came to little; and when you brought it home, I blew it away. Why?" says Yahweh of Armies, "Because of my house that lies waste, while each of you is busy with his own house.

Haggai 2:14-17

Then Haggai answered, "'So is this people, and so is this nation before me,' says Yahweh; 'and so is every work of their hands. 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 Yahweh of Armies.

Malachi 3:1

"Behold, I send my messenger, and he will prepare the way before me; and the Lord, whom you seek, will suddenly come to his temple; and the messenger of the covenant, whom you desire, behold, he comes!" says Yahweh of Armies.

Acts 7:30-35

"When forty years were fulfilled, an angel of the Lord 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 will be revealed. For the Day will declare it, because it is revealed in fire; and the fire itself will test what sort of work each man's work is.

1 Timothy 5:21

I command you in the sight of God, and Christ Jesus, and the chosen angels, that you observe these things without prejudice, doing nothing by partiality.

Hebrews 1:14

Aren't they all serving spirits, sent out to do service for the sake of those who will inherit salvation?

James 1:26

If anyone among you thinks himself to be religious while he doesn't bridle his tongue, but deceives his heart, this man's religion is worthless.

James 3:2

For in many things we all stumble. If anyone doesn't stumble in word, the same is a perfect man, able to bridle the whole body also.

2 John 1:8

Watch yourselves, that we don't lose the things which we have accomplished, but that we 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 God's house; for to draw near to listen is better than to give the sacrifice of fools, for they don't know that they do evil.
James 1:26
If anyone among you thinks himself to be religious while he doesn't bridle his tongue, but deceives his heart, this man's religion is worthless.
James 3:2
For in many things we all stumble. If anyone doesn't stumble in word, the same is a perfect man, able to bridle the whole body also.

Before

Leviticus 5:4
"'Or if anyone swears rashly with his lips to do evil, or to do good, whatever it is that a man might utter rashly with an oath, and it is hidden from him; when he knows of it, then he shall be guilty of one of these.
Genesis 48:16
the angel who has 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. Let them grow into a multitude in the midst of the earth."
Hosea 12:4
Indeed, he struggled with the angel, and prevailed; he wept, and made supplication to him. He found him at Bethel, and there he spoke 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 Yahweh of Armies.
Malachi 3:1
"Behold, I send my messenger, and he will prepare the way before me; and the Lord, whom you seek, will suddenly come to his temple; and the messenger of the covenant, whom you desire, behold, he comes!" says Yahweh of Armies.
Acts 7:30
"When forty years were fulfilled, an angel of the Lord appeared to him in the wilderness of Mount Sinai, in a flame of fire in a bush.
1 Corinthians 11:10
For this cause the woman ought to have authority on her head, because of the angels.
1 Timothy 5:21
I command you in the sight of God, and Christ Jesus, and the chosen angels, that you observe these things without prejudice, doing nothing by partiality.
Hebrews 1:14
Aren't they all serving spirits, sent out to do service for the sake of those who will inherit salvation?

It was

Leviticus 5:4
"'Or if anyone swears rashly with his lips to do evil, or to do good, whatever it is that a man might utter rashly with an oath, and it is hidden from him; when he knows of it, then he shall be guilty of one of these.
Leviticus 27:9
"'If it is an animal, of which men offer an offering to Yahweh, all that any man gives of such to Yahweh becomes holy.

Destroy

Haggai 1:9
"You looked for much, and, behold, it came to little; and when you brought it home, I blew it away. Why?" says Yahweh of Armies, "Because of my house that lies waste, while each of you is busy with his own house.
Haggai 2:14
Then Haggai answered, "'So is this people, and so is this nation before me,' says Yahweh; 'and so is every work of their hands. That which they offer there is unclean.
1 Corinthians 3:13
each man's work will be revealed. For the Day will declare it, because it is revealed in fire; and the fire itself will test what sort of work each man's work is.
2 John 1:8
Watch yourselves, that we don't lose the things which we have accomplished, but that we receive a full reward.