15 »If your brother sins against you, go and tell him his fault, between you and him alone. If he listens to you, you have gained your brother.
7 And when you pray, do not use empty repetitions as the Gentiles do. For they think that they will be heard for their many words.
9 Do not return evil for evil or insult for insult, but give a blessing instead; for to this you were called, that you may inherit a blessing.
18 Little children, let us not love in word or tongue but in deed and in truth.
3 Therefore whatever you have said in the dark will be heard in the light, and what you have whispered in the ear in the inner rooms will be proclaimed from the housetops.
9 because, if you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved.
45 The good man out of the good treasure of his heart brings forth good, and an evil man out of the evil treasure of his heart brings forth evil. For out of the abundance of the heart his mouth speaks.
26 Likewise the Spirit helps us in our weakness; for we do not know what to pray for as we ought, but the Spirit himself intercedes for us with groans that words cannot express.
2 For we all stumble in many ways. If anyone does not stumble in what he says, he is a perfect man, able to bridle the whole body as well.
19 This you know, my beloved brethren. But everyone must be quick to hear, slow to speak and slow to anger,
29 Let no unwholesome talk come out of your mouths, but only such as is good for building others up according to the need of the moment, that it may impart grace to those who hear.
36 But I tell you that men will have to give account on the day of judgment for every careless word they have spoken.