air guitar
— noun
an imaginary guitar played while miming to rock music
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Air guitar Christians. Do they exist? Are there people who play with an imaginary faith while miming along in worship? Ahh, you betcha. And a dangerous game to play with one’s eternal soul I should think:
22"Many will say to Me on that day, 'Lord, Lord, did we not prophesy in Your name, and in Your name cast out demons, and in Your name perform many miracles?' 23"And then I will declare to them, 'I never knew you; DEPART FROM ME, YOU WHO PRACTICE LAWLESSNESS.'
Matthew 7:22-23 (New American Standard Bible)
Clearly Jesus knew there were many who professed to know Him but who were going to be surprised in the final judgment. Not good. Really. Not good at all, for then there will be nothing left to turn to, but an eternity separated from God.
Authenticity in your relationship with God. make sure you have it. Whether it be with the milk of the start of a walk in faith with Jesus, or with the meat of a full, maturing relationship.
Just make sure it is not one filled with hot air only.