Revelation 13:5

And there was a mouth given unto him that spake great things, and blasphemies, and power was given unto him, to continue forty two months.

Daniel 7:8

And behold, there came up among them, another like horn, before whom there were three of the first horns plucked away. Behold, this horn had eyes like a man, and a mouth speaking presumptuous things.

Daniel 7:11

Then took I heed there unto, because of the voice of the proud words, which the horn spake. I beheld, till the beast was slain, and his body destroyed, and given over to be burnt in the fire.

Daniel 11:36

The king shall do what him list, he shall exalt and magnify himself against all that is God. Yea, he shall speak marvelous things against the God of all gods, wherein he shall prosper, so long till the wrath be fulfilled, for the conclusion is devised already.

Daniel 7:25

He shall subdue three kings, and shall speak words against the highest of all: he shall destroy the saints of the most highest, and think that he may change times and laws. They shall be given under his power, until a time, two times, and a half a time.

Revelation 12:6

And the woman fled into wilderness, where she had a place, prepared of God, that they should feed her there, one thousand two hundred and sixty days.

Daniel 7:20

I desired also to know the truth, as touching the ten horns that he had upon his head, and this other which came up afterward, before whose face there fell down three: which horn had eyes and a mouth that spake presumptuous things, and looked with a grimmer visage than his fellows.

Revelation 11:2-3

but the court which is without the temple cast out, and mete it not: for it is given unto the gentiles, and the holy city shall they tread under foot forty two months.

Revelation 12:14

And to the woman were given two wings of a great eagle, that she might fly into the wilderness, into her place, where she is nourished for a time, times, and half a time, from the presence of the serpent.

2 Thessalonians 2:4

which is an adversary, and is exalted above all that is called God, or that is worshipped: so that he shall sit as God in the temple of God, and show himself as God.

Revelation 11:7

And when they have finished their testimony, the beast that came out of the bottomless pit shall make war against them: and shall overcome them, and kill them.

Revelation 13:7

And it was given unto him to make war with the saints, and to overcome them. And power was given him over all kindred, tongue, and nation:

Treasury of Scripture Knowledge

Summary

And there was given unto him a mouth speaking great things and blasphemies; and power was given unto him to continue forty and two months.

Bible References

A mouth

Daniel 7:8
And behold, there came up among them, another like horn, before whom there were three of the first horns plucked away. Behold, this horn had eyes like a man, and a mouth speaking presumptuous things.
Daniel 11:36
The king shall do what him list, he shall exalt and magnify himself against all that is God. Yea, he shall speak marvelous things against the God of all gods, wherein he shall prosper, so long till the wrath be fulfilled, for the conclusion is devised already.

And power

Revelation 11:2
but the court which is without the temple cast out, and mete it not: for it is given unto the gentiles, and the holy city shall they tread under foot forty two months.
Revelation 12:6
And the woman fled into wilderness, where she had a place, prepared of God, that they should feed her there, one thousand two hundred and sixty days.

To continue

Revelation 13:7
And it was given unto him to make war with the saints, and to overcome them. And power was given him over all kindred, tongue, and nation:
Revelation 11:7
And when they have finished their testimony, the beast that came out of the bottomless pit shall make war against them: and shall overcome them, and kill them.

General references

Proverbs 17:4
A wicked body giveth audience to false lips; and a dissembling person giveth ear to a deceitful tongue.
Isaiah 36:14
Thus sayeth the king, 'Let not Hezekiah deceive you, for he shall not be able to deliver you.'
Matthew 15:18
But those things which proceed out of the mouth come from the heart, and they defile the man.