Luke 6:45
A good man, out of the good he has accumulated in his heart, produces good, and a bad man, out of what he has accumulated that is bad, produces what is bad. For his mouth says only what his heart is full of.
Matthew 12:34-37
You brood of snakes! how can you, bad as you are, utter anything good? For the mouth says only what the heart is full of.
Acts 8:19-23
saying, "Give me also this power to communicate the holy Spirit to anyone I place my hands upon."
Romans 3:13-14
Their throats are like open graves, They use their tongues to deceive; The venom of asps is behind their lips,
Ephesians 4:29
No bad word must ever pass your lips, but only words that are good and suited to improve the occasion, so that they will be a blessing to those who hear them.
Ephesians 5:3-4
But immorality or any form of vice or greed must not be so much as mentioned among you; that would not be becoming in God's people.
Ephesians 5:19
and speak to one another in psalms, hymns, and sacred songs. Sing praise to God with all your hearts;
Colossians 4:6
Always put your message attractively, and yet pointedly, and be prepared to give every inquirer a fitting answer.
Hebrews 8:10
'For this is the agreement that I will make with the house of Israel, In those later days,' says the Lord; 'I will put my laws into their minds, And write them on their hearts, And they will have me for their God, And I will have them for my people.
James 3:5-8
So the tongue is a little organ and yet very boastful. What a great forest a spark will set on fire!
John 7:38
If anyone believes in me, streams of living water, as the Scripture says, shall flow forth from his heart."
Acts 5:3
And Peter said, "Ananias, why has Satan taken such possession of your heart that you should lie to the holy Spirit, by appropriating part of the price of your land?
2 Corinthians 4:6-7
For God who said, "Let light shine out of darkness," has shone in my heart, to give me the light of the knowledge of God's glory, that is on the face of Christ.
Ephesians 3:8
To me, the very least of all his people, this favor has been given, of preaching to the heathen the inexhaustible wealth of the Christ,
Colossians 3:16
Let the message of Christ live in your hearts in all its wealth of wisdom. Teach it to one another and train one another in it with thankfulness, with psalms, hymns, and sacred songs, and sing to God with all your hearts.
Jude 1:15
to execute judgment upon all, and to convict all the godless of all the godless deeds they have done, and of all the harsh things that godless sinners have said against him."