Luke 6:45
The good man, out of his good inner storehouse, brings forth what is good, the bad man, out of his bad one, what is bad. For a man's mouth usually speaks the things that fill his heart.
Matthew 12:34-37
You brood of vipers! How can you, wicked as you are, say anything that is good? For the mouth talks about the things that fill the heart.
Acts 8:19-23
and said, "Give me this power too, that when I lay my hands on anyone he may receive the Holy Spirit."
Romans 3:13-14
Their throats are just like open graves, with their tongues they have spoken treachery; the poison of asps is under their lips.
Ephesians 4:29
You must stop letting any bad word pass your lips, but only words that are good for building up as the occasion demands, so that they will result in spiritual blessing to the hearers.
Ephesians 5:3-4
But sexual vice and any form of immorality or sensual greed must not so much as be mentioned among you, as that is the only course becoming in God's people;
Ephesians 5:19
and always be speaking to one another in psalms, hymns, and spiritual songs. Keep on praying and praising the Lord with all your heart;
Colossians 4:6
Always let your conversation be seasoned with salt, that is, with winsomeness, so that you may know how to make a fitting answer to everyone.
Hebrews 8:10
'For this is the covenant that I will make with the house of Israel in those days,' says the Lord; 'I will put my laws into their minds, and write them on their hearts, and I will be their God, and they will be my people. And nevermore will each one need to teach his fellow-citizen,
James 3:5-8
So the tongue, too, is a little organ but can boast of great achievements. See how a spark, ever so tiny, can set a vast forest on fire!
John 7:38
Whoever continues to believe in me will have, as the Scripture says, rivers of living water continuously flowing from within him."
Acts 5:3
And Peter said, "Ananias, why has Satan so completely possessed your heart that you have lied to the Holy Spirit and kept back for yourselves a part of the money received for the land?
2 Corinthians 4:6-7
For God who said, "Let light shine out of darkness," is the One who has shone in my heart, to give me the light of the knowledge of God's glory, reflected on the face of Christ.
Ephesians 3:8
yes, on me, the very least of all His people, this unmerited favor was bestowed -- that I might preach as good news to the heathen the boundless riches of Christ,
Colossians 3:16
Let the message of Christ continue to live in you in all its wealth of wisdom; keep on teaching it to one another and training one another in it with thankfulness, in your hearts singing praise to God with psalms, hymns, and spiritual songs.
Jude 1:15
to execute judgment upon all, to convict all the godless of their godless deeds which in their godlessness they have committed, and of all the harsh things that godless sinners have said against Him."