“You belong to your father, the devil, and you want to carry out your father's desires. He was a murderer from the beginning, not holding to the truth, for there is no truth in him. When he lies, he speaks his native language, for he is a liar and the father of lies.” John 8:44
This verse from the Book of John tells us that the Devil is not only a liar, but also that he is the father of lies, meaning that has a very advanced and skilled proficiency in this act of deception. He will tell you lies so that you rely on Him, not the Father. One of the biggest lies he wants you to subscribe to is that he is stronger than God, and that it’s ok to fall victim to sin, the flesh and weakness. He wants you to carry out his desires and will try to get you to see lies as truth, when that truth has no merit.