Exodus 20:16 New International Version (NIV)

16 “You shall not give false testimony against your neighbor.

If you testify falsely, that means you are lying. God set up Israel’s justice system, so that it would not be corrupt. Make sure you are honest in your private dealings, as well as, public. Do not leave information out, tell half truths, or twist the facts. As a child of God, do not give in to deception.