Do know when the book of Hebrews was written and by whom? This question has direct bearing on your response seen above. You stated categorically (with complete surety) that the language used in Rev. 1:16 came from Heb. 4:12-13, obviously not realizing that Revelation was written AFTER Hebrews. We know with certainty that John the Beloved wrote Revelation, we do not know with certainty who wrote Hebrews (it was NOT Paul).
I did not need to be told the meaning of the term 'two-edged sword' because that is obvious to anyone that loves and practices the truth. The only words that come out of the mouth of God are TRUTH. The fact that this 'sword' does not cut the wielder (Jesus) is that Jesus IS TRUTH. But this sword cuts to the heart of the matter of salvation in both the forehand pass, and the back hand pass. There is no rest from Truth, no one can hide from its stroke; all will be brought low by it UNLESS they have truth in them as does Jesus. The ONLY way to get this truth inside you is to ABIDE in the words of the author of Truth, who is Jesus. You cannot gain this truth by having it downloaded into you (imparted), or by having someone else stand in your place in the face of it (imputed). YOU must have it INSIDE you in order to not be cut by its blade. The only way to achieve this is through the process of Sanctification as taught by Jesus Christ. If you believe that you are 'righteoused'(made righteous) in any other way then you will be cut down by Truth's blade.
If you believe that you can never, never, never be righteous because you are sinful and will always be thus; and that your sinfulness is made into righteousness by being cloaked (hidden) in the righteousness of another, then you will be cut down as a dry branch, bundled together with the other dry branches pruned from the vine, and you will be cast in the fire of the destruction of the 2nd death.
These concepts are NOT MINE. I did not invent them out of whole cloth. I did not make them up just to annoy you. They are from the words and teachings of Jesus Christ as He gave them to His own eyewitness disciples. You can argue until you are blue in the face with me, but that simply does not change the facts and evidence.
So, YOU reject Heb. 4:12-13 in favour of YOUR own interpretation of the biblical prophecy. What can I say?