Lying is not an honor, since this is not pleasing to God, it is something that the wicked uses a lot, to get out of any mess and to create dissension among others. Bearing false witness against another person is a big problem because it can cause fights and even physical abuse.
That is why it is not good to lie or give false testimony to others. If your neighbor is doing something wrong and is out of control, talk with him patiently, help him and tell him how things should be, treating him with meekness and humility. This way, all kind of problems that could happen will be avoided.
A man that beareth false witness against his neighbour is a maul, and a sword, and a sharp arrow.
It is no lie that the tongue is the most dangerous member of the body, because thanks to a word, it can be destroyed from a family to a nation. God does not like the lie. From the previous verse we can learn that every tongue of him who speaks false testimony against his neighbor is like a hammer that strikes. Also a knife that cuts or a sharp bolt that pierces you until it makes you a fast and strong damage. So, we must be very careful when talking about someone else.
Be wise and act with good behavior and treat your neighbor as yourself. Love him and do not give false testimony, because those who have mercy are the people that acts like that. God is in heaven and sees all this what is on earth.