Cross reference
Proverbs 15:7
7 The lips of the wise spread knowledge; Not so with the heart of fools.
Matthew 12:34
34 You offspring of vipers, how can you, being evil, speak good things? For out of the abundance of the heart, the mouth speaks.
James 3:6
6 And the tongue is a fire. The world of iniquity among our members is the tongue, which defiles the whole body, and sets on fire the course of nature, and is set on fire by Gehenna.{Gehenna is a name that describes a burning Hell with rotting bodies and unclean things in it}
2 Timothy 2:2
2 The things which you have heard from me among many witnesses, commit the same to faithful men, who will be able to teach others also.
Ephesians 4:29
29 Let no corrupt speech proceed out of your mouth, but such as is good for building up as the need may be, that it may give grace to those who hear.
Romans 15:18-21
18 For I will not dare to speak of any things except those which Christ worked through me, for the obedience of the Gentiles, by word and deed,
19 in the power of signs and wonders, in the power of God's Spirit; so that from Jerusalem, and around as far as to Illyricum, I have fully preached the Gospel of Christ;
20 yes, making it my aim to preach the Gospel, not where Christ was already named, that I might not build on another's foundation.
21 But, as it is written, "They will see, to whom no news of him came. They who haven't heard will understand."
Romans 10:14-17
14 How then will they call on him in whom they have not believed? How will they believe in him whom they have not heard? How will they hear without a preacher?
15 And how will they preach unless they are sent? As it is written: "How beautiful are the feet of those who preach the Gospel of peace, Who bring glad tidings of good things!"
16 But they didn't all listen to the glad news. For Isaiah says, "Lord, who has believed our report?"
17 So faith comes by hearing, and hearing by the word of God.
Acts 18:9-10
9 The Lord said to Paul in the night by a vision, "Don't be afraid, but speak and don't be silent;
10 for I am with you, and no one will attack you to harm you, for I have many people in this city."
Mark 16:15
15 He said to them, "Go into all the world, and preach the Gospel to the whole creation.
Matthew 28:18-20
18 Jesus came to them and spoke to them, saying, "All authority has been given to me in heaven and on earth.
19 Therefore go, and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit,
20 teaching them to observe all things that I commanded you. Behold, I am with you always, even to the end of the age." Amen.
Matthew 10:27
27 What I tell you in the darkness, speak in the light; and what you hear whispered in the ear, proclaim on the housetops.
Song of Solomon 4:11
11 Your lips, my bride, drip like the honeycomb. Honey and milk are under your tongue. The smell of your garments is like the smell of Lebanon.
Ecclesiastes 12:9-10
9 Further, because the Preacher was wise, he still taught the people knowledge. Yes, he pondered, sought out, and set in order many proverbs.
10 The Preacher sought to find out acceptable words, and that which was written blamelessly, words of truth.
Proverbs 10:20-21
20 The tongue of the righteous is like choice silver. The heart of the wicked is of little worth.
21 The lips of the righteous feed many, But the foolish die for lack of understanding.
Psalms 119:13
13 With my lips, I have declared all the ordinances of your mouth.
Psalms 78:2-6
2 I will open my mouth in a parable. I will utter dark sayings of old,
3 Which we have heard and known, And our fathers have told us.
4 We will not hide them from their children, Telling to the generation to come the praises of Yahweh, His strength, and his wondrous works that he has done.
5 For he established a testimony in Jacob, And appointed a law in Israel, Which he commanded our fathers, That they should make them known to their children;
6 That the generation to come might know, even the children who should be born; Who should arise and tell their children,
Psalms 71:15-18
15 My mouth will tell about your righteousness, And of your salvation all day, Though I don't know its full measure.
16 I will come with the mighty acts of the Lord Yahweh. I will make mention of your righteousness, even of yours alone.
17 God, you have taught me from my youth. Until now, I have declared your wondrous works.
18 Yes, even when I am old and gray-haired, God, don't forsake me, Until I have declared your strength to the next generation, Your might to everyone who is to come.
Psalms 51:13-15
13 Then I will teach transgressors your ways. Sinners shall be converted to you.
14 Deliver me from bloodguiltiness, O God, the God of my salvation. My tongue shall sing aloud of your righteousness.
15 Lord, open my lips. My mouth shall declare your praise.
Psalms 45:2
2 You are the most excellent of the sons of men. Grace has anointed your lips, Therefore God has blessed you forever.
Psalms 37:30
30 The mouth of the righteous talks of wisdom. His tongue speaks justice.