Matthew 5:37 Esv

Colossians 3:9 NIV
Do not lie to each other, since you have taken off your old self with its practices

Colossians 4:6 NIV
Let your conversation be always full of grace, seasoned with salt, so that you may know how to answer everyone.

James 5:12 NIV
Above all, my brothers and sisters, do not swear—not by heaven or by earth or by anything else. All you need to say is a simple “Yes” or “No.” Otherwise you will be condemned.