A truthful witness saves lives, but one who breathes out lies is deceitful (Proverbs 14:25, ESV). There are a number of ways to understand this – all interrelated. First, there is the truthful witness in a trial. Perhaps one being accused will be vindicated. Second, there are words of wisdom from another wherein the recipient of those words can make immediate application and spare oneself from physical harm that could end in death. Third, and ultimate, there are the words of Jesus that save. Jesus said that He is the way, the truth, and the life. Thus, all who would enter the blessings of the Father must do so through Him. On the other hand, Satan will lie to whatever degree he can to destroy. All those who live his hedonistic ways might very well do the same. RT