As a kid I used to hear this term used about those who were caught lying.  Today has been a rough day for me as Satan the father of lies has been attacking me.  God already knew that he would do it and is allowing for this to happen.  Depression is my weakness and this is being used by God to refine me in the fire.  As bad thoughts entered my mind, God reminded me of His Truth, that Satan is a liar and he will be placed in a fiery furnace one day.  The Lord is bringing me to this verse to read for encouragement in my walk with Jesus and to share for others who are struggling with different attacks from the father of lies and his demise in Revelation 20:10 And the devil, who deceived them, was thrown into the lake of burning sulfur, where the beast and the false prophet had been thrown.  They will be tormented day and night forever and ever.  As children of God, we will be brought to God’s truth as Satan will not be able to keep deceiving us.  He may temporary trick us, but ultimately the children of God will know the Truth and reject the lies of the devil.  The Lord is also bringing me to read in Genesis 50:20 You intended to harm me, but God intended it for good to accomplish the saving of many lives.  This verse is what Joseph said to his brothers, but also it is true regarding evil done by the enemy and for the children of God that  He will bring good out of all things for those who love Him.  Romans 8:24-28 For in this hope we were saved.  But hope that is seen is no hope at all.  Who hopes for what he already has?  But if  we hope for what we do not yet have, we wait patiently.  In the same way, the Spirit helps us in our weakness.  We do not know what we ought to pray for, but the Spirit himself intercedes for us with groans that words cannot express.  And he who searches our hearts knows the mind of  the Spirit, because the Spirit intercedes for the saints in accordance to God’s will.  And we know that in all things God works for the good of those who love him, who have been called according to his purpose.