Self-deception can be quite costly

Researchers have concluded that there are costs associated with self-deception:

The invisible downside of cheating in life

People who take shortcuts can trick themselves into believing they are smarter than they are, says Tom Stafford, and it comes back to bite them. …

The researchers ran another experiment to check that the effect was really due to the cheaters’ inflated belief in their own abilities. In this experiment, students were offered a cash reward for accurately predicting their scores on the second test. Sure enough, those who had been given the opportunity to cheat overestimated their ability and lost out – earning 20% less than the other students.

The implication is that people in Chance’s experiment – people very much like you and me – had tricked themselves into believing they were smarter than they were. There may be benefits from doing this – confidence, satisfaction, or more easily gaining the trust of others – but there are also certainly disadvantages. Whenever circumstances change and you need to accurately predict how well you’ll do, it can cost to believe you’re better than you are.

That self-deception has its costs has some interesting implications. Morally, most of us would say that self-deception is wrong. But aside from whether self-deception is undesirable, we should expect it to be present in all of us to some degree (because of the benefits), but to be limited as well (because of the costs).

Self-deception isn’t something that is always better in larger doses – there must be an amount of it for which the benefits outweigh the costs, most of the time. We’re probably all self-deceiving to some degree. The irony being, because it is self-deception, we can’t know how often. http://www.bbc.com/future/story/20150225-unexpected-downside-for-cheaters

Jesus taught that Satan was a liar and the father of lies:

44 You are of your father the devil, and the desires of your father you want to do. He was a murderer from the beginning, and does not stand in the truth, because there is no truth in him. When he speaks a lie, he speaks from his own resources, for he is a liar and the father of it (John 8:44)

Of course, Satan takes advantage of deception and encourages humans to deceive themselves. Recall what happened to Eve:

14 And Adam was not deceived, but the woman being deceived, fell into transgression. (1 Timothy 2:14)

6 So when the woman saw that the tree was good for food, that it was pleasant to the eyes, and a tree desirable to make one wise, she took of its fruit and ate. She also gave to her husband with her, and he ate. (Genesis 3:6-7)

Satan was involved, but the woman allowed herself to be deceived. This type of deception happens every day.

But what about Christians? Can Christians fall victim to self-deception?

Jesus warned that most Christians in the end times would be deceived:

14 “And to the angel of the church of the Laodiceans write,

‘These things says the Amen, the Faithful and True Witness, the Beginning of the creation of God: 15 “I know your works, that you are neither cold nor hot. I could wish you were cold or hot. 16 So then, because you are lukewarm, and neither cold nor hot, I will vomit you out of My mouth. 17 Because you say, ‘I am rich, have become wealthy, and have need of nothing’ — and do not know that you are wretched, miserable, poor, blind, and naked — 18 I counsel you to buy from Me gold refined in the fire, that you may be rich; and white garments, that you may be clothed, that the shame of your nakedness may not be revealed; and anoint your eyes with eye salve, that you may see. 19 As many as I love, I rebuke and chasten. Therefore be zealous and repent. (Revelation 3:14-19)

Although most Laodiceans do not believe that they are deceiving themselves, Jesus said that they were. Jesus said that Laodicean Christians needed to repent–they need to change.

In addition to doctrine and how they lead their lives, there are serious prophetic deceptions that the Laodiceans have fallen for. A list of 30 prophetic deceptions that various Laodiceans believe is in the article The Laodicean Church Era. Believing several of these will insure that Laodiceans will not realize that the Great Tribulation is here until it is to late for most to flee (cf. Revelation 12:14-17).

Self-deception is common. Try not to fall for it. The word of God is truth (John 17:17), hopefully you will believe it enough so that you will resist Satanically-encouraged self-deception (cf. James 4:7).

Some items of possibly related interest may include:

Lies Where did they originate? What was really the first lie? What happens for lies? Here is a link to it in Mandarin Chinese 第一个谎言和基督徒的意味
 Satan’s Plan Does Satan have a plan? What is it? Has it already been successful? Will it be successful in the future? Here are links to a two-part sermon series: What are Some of the Parts of Satan’s Plan? and Satan’s Plan is More Dramatic than Many Realize.
Did God Create a Devil? If not, what happened? Herbert W. Armstrong wrote this as a booklet.
Where is the True Christian Church Today? This free online pdf booklet answers that question and includes 18 proofs, clues, and signs to identify the true vs. false Christian church. Plus 7 proofs, clues, and signs to help identify Laodicean churches. A related sermon is also available: Where is the True Christian Church? Here is a link to the booklet in the Spanish language: ¿Dónde está la verdadera Iglesia cristiana de hoy? Here is a link in the German language: WO IST DIE WAHRE CHRISTLICHE KIRCHE HEUTE? Here is a link in the French language: Où est la vraie Église Chrétienne aujourd’hui?
Continuing History of the Church of God This pdf booklet is a historical overview of the true Church of God and some of its main opponents from Acts 2 to the 21st century. Related sermon links include Continuing History of the Church of God: c. 31 to c. 300 A.D. and Continuing History of the Church of God: 4th-16th Centuries. The booklet is available in Spanish: Continuación de la Historia de la Iglesia de Dios, German: Kontinuierliche Geschichte der Kirche Gottes, and Ekegusii Omogano Bw’ekanisa Ya Nyasae Egendererete.
The Ten Commandments Reflect Love, Breaking them is Evil Some feel that the ten commandments are a burden. Is that what Jesus, Paul, Peter, James, and John taught? For a more detailed discussion of the first four commandments, please see the video The Ten Commandments: Loving God. For a more detailed discussion of the last six commandments, please see: The Ten Commandments: Loving Your Neighbor. Here is a link to a related article in Mandarin Chinese 十条诫命显示爱，违反诫命的就是邪恶的
 When Will the Great Tribulation Begin? 2016, 2017, or 2018? Can the Great Tribulation begin today? What happens before the Great Tribulation in the “beginning of sorrows”? What happens in the Great Tribulation and the Day of the Lord? Is this the time of the Gentiles? When is the earliest that the Great Tribulation can begin? What is the Day of the Lord? Who are the 144,000? Here is a version of the article in the Spanish language: ¿Puede comenzar la Gran Tribulación en 2016 o 2017? ¿Es el Tiempo de los Gentiles? You can also see the English language sermon video: The Great Tribulation from the Mount of Olives. A shorter video is: Can the Great Tribulation Start in 2016?
The Laodicean Church Era has been predominant circa 1986 A.D. to present. The Laodiceans are non-Philadelphians who mainly descended from the old WCG or its offshoots. They do not properly understand the work or biblical prophecies and will face the Great Tribulation if they do not repent.
There is a Place of Safety for the Philadelphians. Why it May Be Petra This article discusses a biblical ‘place of safety’ and includes quotes from the Bible and Herbert W. Armstrong on this subject–thus, there is a biblically supported alternative to the rapture theory. There is also a video on the subject: Might Petra be the Place of Safety? Here is something related in the Spanish language: Hay un lugar de seguridad para los Filadelfinos. ¿Puede ser Petra?