Luke 6:45
A good man from the good stored up in his heart brings out what is good; and an evil man from the evil stored up brings out what is evil; for from the overflow of his heart his mouth speaks.
Matthew 12:34-37
O vipers' brood, how can you speak what is good when you are evil? For it is from the overflow of the heart that the mouth speaks.
Acts 8:19-23
"Give me too," he said, "that power, so that every one on whom I place my hands will receive the Holy Spirit."
Romans 3:13-14
"Their throats resemble an opened grave; with their tongues they have been talking deceitfully." "The venom of vipers lies hidden behind their lips."
Ephesians 4:29
Let no unwholesome words ever pass your lips, but let all your words be good for benefiting others according to the need of the moment, so that they may be a means of blessing to the hearers.
Ephesians 5:3-4
But fornication and every kind of impurity, or covetousness, let them not even be mentioned among you, for they ought not to be named among God's people.
Ephesians 5:19
but drink deeply of God's Spirit. Speak to one another with psalms and hymns and spiritual songs. Sing and offer praise in your hearts to the Lord.
Colossians 4:6
Let your language be always seasoned with the salt of grace, so that you may know how to give every man a fitting answer.
Hebrews 8:10
But this is the Covenant that I will covenant with the house of Israel after those days,' says the Lord: I will put My laws into their minds and will write them upon their hearts. And I will indeed be their God and they shall be My People.
James 3:5-8
In the same way the tongue is an insignificant part of the body, but it is immensely boastful. Remember how a mere spark may set a vast forest in flames.
John 7:38
He who believes in me, from within him--as the Scripture has said--rivers of living water shall flow."
Acts 5:3
"Ananias," said Peter, "why has Satan taken possession of your heart, that you should try to deceive the Holy Spirit and dishonestly keep back part of the price paid you for this land?
2 Corinthians 4:6-7
For God who said, "Out of darkness let light shine," is He who has shone in our hearts to give us the light of the knowledge of God's glory, which is radiant on the face of Christ.
Ephesians 3:8
To me who am less than the least of all God's people has this work been graciously entrusted--to proclaim to the Gentiles the Good News of the exhaustless wealth of Christ,
Colossians 3:16
Let the teaching concerning Christ remain as a rich treasure in your hearts. In all wisdom teach and admonish one another with psalms, hymns, and spiritual songs, and sing with grace in your hearts to God.
Jude 1:15
and to convict all the ungodly of all the ungodly deeds which in their ungodliness they have committed, and of all the hard words which they, ungodly sinners as they are, have spoken against Him."