Psalm 51:15

O Lord, open thou my lips; And my mouth shall show forth thy praise.

Genesis 44:16

And Judah said, What shall we say unto my lord? what shall we speak? or how shall we clear ourselves? God hath found out the iniquity of thy servants: behold, we are my lord's bondmen, both we, and he also in whose hand the cup is found.

Exodus 4:11

And Jehovah said unto him, Who hath made man's mouth? Or who maketh a man dumb, or deaf, or seeing, or blind? Is it not I, Jehovah?

1 Samuel 2:9

He will keep the feet of his holy ones; But the wicked shall be put to silence in darkness; For by strength shall no man prevail.

Psalm 9:14

That I may show forth all thy praise. In the gates of the daughter of Zion I will rejoice in thy salvation.

Psalm 63:3-5

Because thy lovingkindness is better than life, My lips shall praise thee.

Psalm 119:13

With my lips have I declared All the ordinances of thy mouth.

Ezekiel 3:27

But when I speak with thee, I will open thy mouth, and thou shalt say unto them, Thus saith the Lord Jehovah: He that heareth, let him hear; and he that forbeareth, let him forbear: for they are a rebellious house.

Ezekiel 16:63

that thou mayest remember, and be confounded, and never open thy mouth any more, because of thy shame, when I have forgiven thee all that thou hast done, saith the Lord Jehovah.

Ezekiel 29:21

In that day will I cause a horn to bud forth unto the house of Israel, and I will give thee the opening of the mouth in the midst of them; and they shall know that I am Jehovah.

Matthew 22:12

and he saith unto him, Friend, how camest thou in hither not having a wedding-garment? And he was speechless.

Mark 7:34

and looking up to heaven, he sighed, and saith unto him, Ephphatha, that is, Be opened.

Romans 3:19

Now we know that what things soever the law saith, it speaketh to them that are under the law; that every mouth may be stopped, and all the world may be brought under the judgment of God:

Hebrews 13:15

Through him then let us offer up a sacrifice of praise to God continually, that is, the fruit of lips which make confession to his name.

Treasury of Scripture Knowledge

Summary

O Lord, open thou my lips; and my mouth shall shew forth thy praise.

Bible References

O lord

Genesis 44:16
And Judah said, What shall we say unto my lord? what shall we speak? or how shall we clear ourselves? God hath found out the iniquity of thy servants: behold, we are my lord's bondmen, both we, and he also in whose hand the cup is found.
1 Samuel 2:9
He will keep the feet of his holy ones; But the wicked shall be put to silence in darkness; For by strength shall no man prevail.
Ezekiel 16:63
that thou mayest remember, and be confounded, and never open thy mouth any more, because of thy shame, when I have forgiven thee all that thou hast done, saith the Lord Jehovah.
Matthew 22:12
and he saith unto him, Friend, how camest thou in hither not having a wedding-garment? And he was speechless.
Romans 3:19
Now we know that what things soever the law saith, it speaketh to them that are under the law; that every mouth may be stopped, and all the world may be brought under the judgment of God:

Open

Exodus 4:11
And Jehovah said unto him, Who hath made man's mouth? Or who maketh a man dumb, or deaf, or seeing, or blind? Is it not I, Jehovah?
Ezekiel 3:27
But when I speak with thee, I will open thy mouth, and thou shalt say unto them, Thus saith the Lord Jehovah: He that heareth, let him hear; and he that forbeareth, let him forbear: for they are a rebellious house.
Ezekiel 29:21
In that day will I cause a horn to bud forth unto the house of Israel, and I will give thee the opening of the mouth in the midst of them; and they shall know that I am Jehovah.
Mark 7:34
and looking up to heaven, he sighed, and saith unto him, Ephphatha, that is, Be opened.

Mouth

Psalm 63:3
Because thy lovingkindness is better than life, My lips shall praise thee.
Psalm 119:13
With my lips have I declared All the ordinances of thy mouth.
Hebrews 13:15
Through him then let us offer up a sacrifice of praise to God continually, that is, the fruit of lips which make confession to his name.

General references

Exodus 4:11
And Jehovah said unto him, Who hath made man's mouth? Or who maketh a man dumb, or deaf, or seeing, or blind? Is it not I, Jehovah?
Psalm 35:28
And my tongue shall talk of thy righteousness And of thy praise all the day long.
Psalm 71:8
My mouth shall be filled with thy praise, And with thy honor all the day.
Psalm 102:21
That men may declare the name of Jehovah in Zion, And his praise in Jerusalem;

American Standard Version Public Domain