Luke 6:45
A good man out of the good treasure of his heart brings forth the good. And an evil man out of the evil treasure of his heart brings forth the evil. For out of the abundance of the heart his mouth speaks.
Psalm 37:30-31
The mouth of the righteous speaks wisdom, and his tongue talks of judgment.
Proverbs 4:23
Keep your heart with all diligence; for out of it are the issues of life.
Matthew 12:34-37
Offspring of vipers! How can you, being evil, speak good things? For out of the abundance of the heart the mouth speaks.
Acts 8:19-23
saying, Give me this power also, that on whomever I lay hands, he may receive the Holy Spirit.
Romans 3:13-14
"Their throat is an open grave, with their tongues they have used deceit, the poison of asps is under their lips;
Ephesians 4:29
Let not any filthy word go out of your mouth, but if any is good to building up in respect of need, that it may give grace to the ones hearing.
Ephesians 5:3-4
For let fornication and all uncleanness or covetousness not be once named among you, as becomes saints,
Ephesians 5:19
speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord;
Colossians 4:6
Let your speech be always with grace, having been seasoned with salt, that you may know how you ought to answer each one.
Hebrews 8:10
"For this is the covenant that I will make with the house of Israel after those days, says the Lord: I will put My Laws into their mind and write them in their hearts, and I will be their God, and they shall be My people.
James 3:5-8
Even so the tongue is a little member and boasts great things. Behold how little a fire kindles how large a forest!
Psalm 12:2-4
They speak vanity each one with his neighbor; with flattering lips and a double heart they speak.
Psalm 40:8-10
I delight to do Your will, O My God; and Your Law is within My heart.
Psalm 41:6-7
And when he comes to see me, he speaks vanity; his heart gathers iniquity to itself; he goes out and speaks of it.
Psalm 52:2-4
Your tongue devises evil, like a sharp razor, working deceitfully.
Psalm 59:7
Behold, they bellow out with their mouth; swords are in their lips; for they say, Who hears?
Psalm 59:12
For the sin of their mouth is the word of their lips, even let them be taken in their pride; and for cursing and the lying which they speak.
Psalm 64:3-8
who sharpen their tongue like a sword, they tread their arrows, even a bitter word,
Psalm 71:15-18
My mouth shall show forth Your righteousness and Your salvation all the day; for I do not know how many they are.
Psalm 140:5
The proud have hidden cords and a trap for me; they have spread a net by the wayside; they have set snares for me. Selah.
Proverbs 10:20-21
The tongue of the just is as choice silver; the heart of the wicked is worth little.
Proverbs 12:18
There are those who speak like the thrusts of a sword, but the tongue of the wise heals.
Proverbs 15:23
A man has joy by the answer of his mouth, and a word in due season, how good it is!
Proverbs 22:17-18
Bow down your ear, and hear the words of the wise, and apply your heart to My knowledge.
Jeremiah 9:2-5
Oh that I had in the wilderness a lodging place for traveling men, that I might leave my people and go away from them! For they are all adulterers, an assembly of treacherous men.
John 7:38
He who believes on Me, as the Scripture has said, "Out of his belly shall flow rivers of living water."
Acts 5:3
But Peter said, Ananias, why has Satan filled your heart for you to lie to the Holy Spirit, and to keep back part of the price of the land?
2 Corinthians 4:6-7
For it is God who said, "Out of darkness Light shall shine;" who shone in our hearts to give the brightness of the knowledge of the glory of God in the face of Jesus Christ.
Ephesians 3:8
This grace is given to me (who am less than the least of all saints) to preach the gospel of the unsearchable riches of Christ among the nations,
Colossians 3:16
Let the Word of Christ dwell in you richly in all wisdom, teaching and admonishing one another in psalms and hymns and spiritual songs, singing with grace in your hearts to the Lord.
Jude 1:15
to do judgment against all, and to rebuke all the ungodly of them concerning all their ungodly works which they ungodly did, and concerning all the hard things ungodly sinners spoke against Him.