The Lord detests lying lips,
Proverbs 12:22
but he delights in people who are trustworthy.
So I tell you this, and insist on it in the Lord, that you must no longer live as the Gentiles do, in the futility of their thinking. They are darkened in their understanding and separated from the life of God because of the ignorance that is in them due to the hardening of their hearts. Having lost all sensitivity, they have given themselves over to sensuality so as to indulge in every kind of impurity, and they are full of greed.
That, however, is not the way of life you learned when you heard about Christ and were taught in him in accordance with the truth that is in Jesus. You were taught, with regard to your former way of life, to put off your old self, which is being corrupted by its deceitful desires; to be made new in the attitude of your minds; and to put on the new self, created to be like God in true righteousness and holiness.Ephesians 4:17-25
Therefore each of you must put off falsehood and speak truthfully to your neighbor, for we are all members of one body.
Lord, who may dwell in your sacred tent?
Who may live on your holy mountain?
The one whose walk is blameless,
who does what is righteous,
who speaks the truth from their heart;
whose tongue utters no slander,who does no wrong to a neighbor,
Psalm 15
and casts no slur on others;
who despises a vile person
but honors those who fear the Lord;
who keeps an oath even when it hurts,
and does not change their mind;
who lends money to the poor without interest;
who does not accept a bribe against the innocent.
Whoever does these things
will never be shaken.
These are the things you are to do:
Speak the truth to each other,
and render true and sound judgment in your courts;
do not plot evil against each other,
and do not love to swear falsely.
I hate all this,” declares the Lord.
Zechariah 8:16-17

Since, then, you have been raised with Christ, set your hearts on things above, where Christ is, seated at the right hand of God. Set your minds on things above, not on earthly things. For you died, and your life is now hidden with Christ in God. When Christ, who is your life, appears, then you also will appear with him in glory.
Colossians 3:1-10
Put to death, therefore, whatever belongs to your earthly nature: sexual immorality, impurity, lust, evil desires and greed, which is idolatry. Because of these, the wrath of God is coming. You used to walk in these ways, in the life you once lived. But now you must also rid yourselves of all such things as these: anger, rage, malice, slander, and filthy language from your lips. Do not lie to each other, since you have taken off your old self with its practices and have put on the new self, which is being renewed in knowledge in the image of its Creator.

Dear friends, I urge you, as foreigners and exiles, to abstain from sinful desires, which wage war against your soul. Live such good lives among the pagans that, though they accuse you of doing wrong, they may see your good deeds and glorify God on the day he visits us.
1 Peter 2:11-12
