'Mouth of the Lord' in the Bible
And they kept him shut up, till a decision might be given by the mouth of the Lord.
At the mouth of the LORD the children of Israel journeyed, and at the mouth of the LORD they pitched. And as long as the cloud abode upon the habitation, they lay still,
If it chanced that the cloud abode any space of time upon the habitation, then they kept their tents at the mouth of the LORD: and they journeyed also at the commandment of the LORD.
At the mouth of the LORD they rested, and at the commandment of the LORD they journeyed. And thus they kept the watch of the LORD, at the commandment of the LORD by the hand of Moses.
And the first took their journey at the mouth of the LORD, by the hand of Moses:
'If Balak would give me his house full of silver and gold, I cannot pass the mouth of the LORD, to do either good or bad of mine own mind. What the LORD sayeth, that must I speak.'
And Moses commanded the children of Israel at the mouth of the LORD, saying, "The tribe of the children of Joseph have said well.
Notwithstanding, ye would not consent to go up, but were disobedient unto the mouth of the LORD your God,
And when I told you, ye would not hear: but disobeyed the mouth of the LORD, and went presumptuously up into the hills.
And he humbled thee, and suffered thee to hunger, and fed thee with manna, which thou knewest not, neither did thy fathers know; that he might make thee know that man doth not live by bread only, but by every word that proceedeth out of the mouth of the LORD doth man live.
Yea, and when the LORD sent you from Kadesh Barnea, saying, 'Go up and conquer the land which I have given you,' ye disobeyed the mouth of the LORD your God, and neither believed him nor hearkened unto his voice.
And the men took of their victuals, and asked not counsel at the mouth of the LORD.
And unto Caleb the son of Jephunneh was there a part given among the children of Judah, by the mouth of the LORD to Joshua, even the city of Kiriatharba father of Anak which city is called Hebron.
which came before Eleazar the priest, and before Joshua the son of Nun, and before the lords, saying, "The LORD commanded Moses to give us an inheritance among our brethren." And he gave them at the mouth of the LORD, an inheritance among the brethren of their fathers.
at the mouth of the LORD they gave him the city which he asked, even Timnathserah in mount Ephraim. And he built the city and dwelt therein.
And the children of Ruben, the children of Gad and half the tribe of Manasseh, returned and departed from the children of Israel out of Shiloh which is in the land of Canaan, to go unto the country of Gilead, and to the land of their possession, wherein they were possessed at the mouth of the LORD by the hand of Moses.
Oh that ye would fear the LORD and serve him and hear his voice and not disobey the mouth of the LORD: and that both ye and the king that reigneth over you would follow the LORD your God.
Then said Saul to Samuel, "I have sinned, for I have transgressed the mouth of the LORD, and thy words; because I feared the people and obeyed their voice.
And he cried unto the man of God that came from Judah, saying, Thus saith the LORD, Forasmuch as thou hast disobeyed the mouth of the LORD, and hast not kept the commandment which the LORD thy God commanded thee,
And when the prophet that brought him back again from the way, heard thereof, he said, "It is the man of God which disobeyed the mouth of the LORD. And therefore the LORD hath delivered him unto the lion which hath rent him and slain him, according to the word of the LORD, which he said to him."
And this is the number of the heads prepared to battle, that came to David to Hebron, to turn the kingdom of Saul to him, according to the mouth of the LORD.
And he did that which was evil in the sight of the LORD his God, and humbled not himself before Jeremiah the prophet speaking from the mouth of the LORD.
But if ye refuse and rebel, ye shall be devoured with the sword: for the mouth of the LORD hath spoken it.
See what is recorded in the book of the Lord: all these will be there, not one without the other: the mouth of the Lord has given the order, and his spirit has made them come together.
And the glory of the LORD shall be revealed, and all flesh shall see it together: for the mouth of the LORD hath spoken it.
Then shalt thou delight thyself in the LORD; and I will cause thee to ride upon the high places of the earth, and feed thee with the heritage of Jacob thy father: for the mouth of the LORD hath spoken it.
And the Gentiles shall see thy righteousness, and all kings thy glory: and thou shalt be called by a new name, which the mouth of the LORD shall name.
Who is the wise man, that may understand this? and who is he to whom the mouth of the LORD hath spoken, that he may declare it, for what the land perisheth and is burned up like a wilderness, that none passeth through?
Thus saith the LORD of hosts, Hearken not unto the words of the prophets that prophesy unto you: they make you vain: they speak a vision of their own heart, and not out of the mouth of the LORD.
Mouth of the Lordnot in NET Bible