This is a tremendously important topic that you've brought out, ginnyrose and all the more as time moves on in these last days - as GOD's Hand of protection will be needed all the more in the days ahead and the need to be "deception proofed" ourselves, as deception will come in a way that's never been seen on this earth as well as "flatteries" from the spirit of antiChrist.
If we give into "little white lies" - though I don't see demons behind every door-knob - I know that it can open one up to a deceitfulness that blinds the person to 'lies' and a spirit of lying takes over to the point that the person does begin to believe their own lies.
This is severely dangerous and an important topic - now more than ever before in history - as the evil that's here and coming will require pure hearts from deception of Any type.
2Tim 3:13 says, "deceiving and be-ing deceived". A lie is a deception and opens the person to be-ing deceived because GOD 'is' Truth and the purpose Jesus came was to testify to Truth and if a person claims to be indwelt by His Spirit of Truth, they are all the more under obligation to walk in That Spirit and not the spirit of the father of lies - that antiChrist spirit of Satan.
GOD loves real people. He wants "Truth in the inward parts", as David wrote and T.A. Sparks did a fine artice by that title.
We know that David wasn't perfect - but he was honest - which is that quality of being "a man after GOD's Own heart".
The number one requirement of our Holy GOD is truth.
He can work with a truthful heart and we can commune with those with a truthful heart - as we're touching GOD's Heart together. But He leaves no room for a deceitful heart.
We seldom see perfection - as in, someone that is fully conformed to The Image of Christ - but there is something refreshing to be with a person who's heart is without that self-seekingness that causes what He called 'guile' and the deceitful heart.
Lies are not necessary for the non-self-seeking, nor the non-deceptive or non-deceived.
Solution:
James 1:22 But be ye doers of the Word, and not hearers only, deceiving your own selves.
Good prayer: Psalm 51
We need to be real and this is how - through this very issue you've brought out.
We need to say what we mean and mean what we say and make sure that it's the truth, before HIM.
We need to fear deception of any sort and pray against it - even with fasting - in view of what's coming, as well.
I know we say that the elect won't be deceived but we need to take another look at what Daniel spoke of this same time period that Paul was referring to - Dan 11:35 "And some of them of understanding shall fall, to try them, and to purge, and to make them white, even to the time of the end ...."
Our prayer should be that GOD would purge us now and purge our thought life, where lies are first conceived - and through careful devotion to Him, take every thought captive, rather than have to 'fall' during those days - Amen!
Pray one for another - as it's been said - that the one that feels that they're above deception is already deceived.