A Fundamental Rivalry
That being the case, how did untruth come to be? Jesus Christ provided the authoritive answer when he told his religious opposers, who were seeking to kill him: "You are from your father the Devil, and you wish to do the desires of your father. That one was a manslayer when he began, and he did not stand fast in the truth, because truth is not in him. When he speaks the lie, he speaks according to his own disposition, because he is a liar and the father of the lie." (John 8:44) Jesus, of course, was referring to the event in the garden of Eden when Satan induced the first human pair to disobey God and thus fall victim to sin and death. -Genesis 3:1-5; Romans 5:12.
The fundamental rivalry between truth and untruth, started by Satan the Devil, still rages today. It permeates all levels of human society and affects every individual. The way a person lives puts him on one side of the issue or the other. Those on God's side base their life course on the truth of God's Word, the Bible. Anyone who does not follow the way of the truth falls, knowingly or unknowingly, into the hands of Satan because "the whole world is lying in the power of the wicked one." -John 5:19; Matthew 7:13, 14.W. 2/1/07
As a Fine Shepherd, Jesus is setting a practical and safe path for us. When we take a stand for his way of ruling we are no longer a part of the world. If, as obedient sheep we are determined to listen to Jesus' words, we will be guided and protected.
(Please compare: John 10:11, 27; John 17:15-17; Colossians 1:13, 18)