Lying is a huge issue for many people, including Christians. “Thou shall not lie” is one of the ten commandments, but even Christians have trouble with this commandment.
Proverbs 6:16-19 ESV
There are six things that the Lord hates, seven that are an abomination to him: haughty eyes, a lying tongue, and hands that shed innocent blood, a heart that devises wicked plans, feet that make haste to run to evil, a false witness who breathes out lies, and one who sows discord among brothers.
Proverbs 19:9 ESV
A false witness will not go unpunished, and he who breathes out lies will perish.
1 John 2:4 ESV
Whoever says “I know him” but does not keep his commandments is a liar, and the truth is not in him,
Psalm 58:3 ESV
The wicked are estranged from the womb; they go astray from birth, speaking lies.
Proverbs 13:5
The righteous hates falsehood, but the wicked brings shame and disgrace.
1 John 1:9 ESV
If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.
John 8:32 ESV
And you will know the truth, and the truth will set you free.”