Isaiah 1:20

but if ye refuse and rebel, ye shall be devoured with the sword; for the mouth of Jehovah hath spoken it.

Isaiah 40:5

and the glory of Jehovah shall be revealed, and all flesh shall see it together; for the mouth of Jehovah hath spoken it.

Isaiah 58:14

then shalt thou delight thyself in Jehovah; and I will make thee to ride upon the high places of the earth; and I will feed thee with the heritage of Jacob thy father: for the mouth of Jehovah hath spoken it.

Numbers 23:19

God is not a man, that he should lie, Neither the son of man, that he should repent: Hath he said, and will he not do it? Or hath he spoken, and will he not make it good?

Micah 4:4

But they shall sit every man under his vine and under his fig-tree; and none shall make them afraid: for the mouth of Jehovah of hosts hath spoken it.

Titus 1:2

in hope of eternal life, which God, who cannot lie, promised before times eternal;

Leviticus 26:33

And you will I scatter among the nations, and I will draw out the sword after you: and your land shall be a desolation, and your cities shall be a waste.

1 Samuel 12:25

But if ye shall still do wickedly, ye shall be consumed, both ye and your king.

1 Samuel 15:29

And also the Strength of Israel will not lie nor repent; for he is not a man, that he should repent.

2 Chronicles 36:14-16

Moreover all the chiefs of the priests, and the people, trespassed very greatly after all the abominations of the nations; and they polluted the house of Jehovah which he had hallowed in Jerusalem.

Isaiah 3:11

Woe unto the wicked! it shall be ill with him ; for what his hands have done shall be done unto him.

Isaiah 3:25

Thy men shall fall by the sword, and thy mighty in the war.

Isaiah 65:12

I will destine you to the sword, and ye shall all bow down to the slaughter; because when I called, ye did not answer; when I spake, ye did not hear; but ye did that which was evil in mine eyes, and chose that wherein I delighted not.

Hebrews 2:1-3

Therefore we ought to give the more earnest heed to the things that were heard, lest haply we drift away from them .

Treasury of Scripture Knowledge

Summary

But if ye refuse and rebel, ye shall be devoured with the sword: for the mouth of the LORD hath spoken it.

Bible References

If ye refuse

Isaiah 3:11
Woe unto the wicked! it shall be ill with him ; for what his hands have done shall be done unto him.
1 Samuel 12:25
But if ye shall still do wickedly, ye shall be consumed, both ye and your king.
2 Chronicles 36:14
Moreover all the chiefs of the priests, and the people, trespassed very greatly after all the abominations of the nations; and they polluted the house of Jehovah which he had hallowed in Jerusalem.
Hebrews 2:1
Therefore we ought to give the more earnest heed to the things that were heard, lest haply we drift away from them .

For the mouth

Isaiah 40:5
and the glory of Jehovah shall be revealed, and all flesh shall see it together; for the mouth of Jehovah hath spoken it.
Isaiah 58:14
then shalt thou delight thyself in Jehovah; and I will make thee to ride upon the high places of the earth; and I will feed thee with the heritage of Jacob thy father: for the mouth of Jehovah hath spoken it.
Leviticus 26:33
And you will I scatter among the nations, and I will draw out the sword after you: and your land shall be a desolation, and your cities shall be a waste.
Numbers 23:19
God is not a man, that he should lie, Neither the son of man, that he should repent: Hath he said, and will he not do it? Or hath he spoken, and will he not make it good?
1 Samuel 15:29
And also the Strength of Israel will not lie nor repent; for he is not a man, that he should repent.
Titus 1:2
in hope of eternal life, which God, who cannot lie, promised before times eternal;

General references

Exodus 9:2
For if thou refuse to let them go, and wilt hold them still,
Leviticus 26:23
And if by these things ye will not be reformed unto me, but will walk contrary unto me;
Deuteronomy 11:28
and the curse, if ye shall not hearken unto the commandments of Jehovah your God, but turn aside out of the way which I command you this day, to go after other gods, which ye have not known.
Deuteronomy 15:5
if only thou diligently hearken unto the voice of Jehovah thy God, to observe to do all this commandment which I command thee this day.
Ezekiel 39:24
According to their uncleanness and according to their transgressions did I unto them; and I hid my face from them.

American Standard Version Public Domain