Luke 6:45
The good person out of the good treasure of his heart produces good, and the evil person out of his evil treasure produces evil, for out of the abundance of the heart his mouth speaks.
Psalm 37:30-31
The mouth of the righteous utters wisdom, and his tongue speaks justice.
Proverbs 4:23
Keep your heart with all vigilance, for from it flow the springs of life.
Matthew 12:34-37
You brood of vipers! How can you speak good, when you are evil? For out of the abundance of the heart the mouth speaks.
Acts 8:19-23
saying, "Give me this power also, so that anyone on whom I lay my hands may receive the Holy Spirit."
Romans 3:13-14
"Their throat is an open grave; they use their tongues to deceive." "The venom of asps is under their lips."
Ephesians 4:29
Let no corrupting talk come out of your mouths, but only such as is good for building up, as fits the occasion, that it may give grace to those who hear.
Ephesians 5:3-4
But sexual immorality and all impurity or covetousness must not even be named among you, as is proper among saints.
Ephesians 5:19
addressing one another in psalms and hymns and spiritual songs, singing and making melody to the Lord with your heart,
Colossians 4:6
Let your speech always be gracious, seasoned with salt, so that you may know how you ought to answer each person.
Hebrews 8:10
For this is the covenant that I will make with the house of Israel after those days, declares the Lord: I will put my laws into their minds, and write them on their hearts, and I will be their God, and they shall be my people.
James 3:5-8
So also the tongue is a small member, yet it boasts of great things. How great a forest is set ablaze by such a small fire!
Psalm 12:2-4
Everyone utters lies to his neighbor; with flattering lips and a double heart they speak.
Psalm 40:8-10
I delight to do your will, O my God; your law is within my heart."
Psalm 41:6-7
And when one comes to see me, he utters empty words, while his heart gathers iniquity; when he goes out, he tells it abroad.
Psalm 52:2-4
Your tongue plots destruction, like a sharp razor, you worker of deceit.
Psalm 59:7
There they are, bellowing with their mouths with swords in their lips-- for "Who," they think,"will hear us?"
Psalm 59:12
For the sin of their mouths, the words of their lips, let them be trapped in their pride. For the cursing and lies that they utter,
Psalm 64:3-8
who whet their tongues like swords, who aim bitter words like arrows,
Psalm 71:15-18
My mouth will tell of your righteous acts, of your deeds of salvation all the day, for their number is past my knowledge.
Psalm 140:5
The arrogant have hidden a trap for me, and with cords they have spread a net; beside the way they have set snares for me. Selah
Proverbs 10:20-21
The tongue of the righteous is choice silver; the heart of the wicked is of little worth.
Proverbs 12:18
There is one whose rash words are like sword thrusts, but the tongue of the wise brings healing.
Proverbs 15:23
To make an apt answer is a joy to a man, and a word in season, how good it is!
Proverbs 22:17-18
Incline 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 desert a travelers' lodging place, that I might leave my people and go away from them! For they are all adulterers, a company of treacherous men.
John 7:38
Whoever believes in me, as the Scripture has said, 'Out of his heart will flow rivers of living water.'"
Acts 5:3
But Peter said, "Ananias, why has Satan filled your heart to lie to the Holy Spirit and to keep back for yourself part of the proceeds of the land?
2 Corinthians 4:6-7
For God, who said, "Let light shine out of darkness,"has shone in our hearts to give the light of the knowledge of the glory of God in the face of Jesus Christ.
Ephesians 3:8
To me, though I am the very least of all the saints, this grace was given, to preach to the Gentiles the unsearchable riches of Christ,
Colossians 3:16
Let the word of Christ dwell in you richly, teaching and admonishing one another in all wisdom, singing psalms and hymns and spiritual songs, with thankfulness in your hearts to God.
Jude 1:15
to execute judgment on all and to convict all the ungodly of all their deeds of ungodliness that they have committed in such an ungodly way, and of all the harsh things that ungodly sinners have spoken against him."