Where does it say in this passage, or any passage, that Satan was bound at the cross?
Heb 2.14
επει ουν τα παιδια κεκοινωνηκεν αιματος και σαρκος και αυτος παραπλησιως μετεσχεν των αυτων ινα δια του θανατου καταργηση τον το κρατος εχοντα του θανατου τουτ εστιν τον διαβολον
epei oun ta paidia kekoinōnēken haimatos kai sarkos kai autos paraplēsiōs meteschen tōn autōn hina dia tou thanatou
katargēsē ton to kratos echonta tou thanatou tout' estin ton diabolon
Since, then, the children have partaken of flesh and blood, in like manner He Himself also shared the same things, that through death He might render entirely idle the one having the power of death, that is, the devil;
καταργηση = ‘katargēsē’
‘katargēsē’ definition:
Strong’s #G2673. Aorist tense verb, 3rd person singular.
The Devil is to be reduced to inactivity through the death of Christ (Heb 2.14). The Epistle to the Hebrews fills out this declaration by stating that through the death of Christ even the one who has power over death, the devil, is condemned to inactivity or ineffectiveness in relation to the Christian (Heb 2.14). To cause something to come to an end or no longer in existence, abolish, wipe out, set aside. To render idle, unemployed, inactivate, inoperative. To cause a person or thing to have no further efficiency. To deprive of force, influence, power. To cause to cease, put an end to, do away with, annul, abolish. To cease, to pass away, be done away. To be severed from, separated from, discharged from, loosed from any one. To terminate all intercourse with one. to be (render) entirely idle (useless), literally or figuratively: - abolish, cease, cumber, deliver, destroy, do away, become (make) of no (none, without) effect, fail, loose, bring (come) to nought, put away (down), vanish away, make void. To cause something to be unproductive, use up, exhaust, waste. To cause something to lose its power or effectiveness, invalidate, make powerless. From #G2596 & #G691.
Strong’s #G2596. Down from.
Strong’s #G691. To be idle.
References:
Theological Dictionary of the New Testament (TDNT), Gerhard Kittel, Gerhard Friedrich, & Geoffrey W. Bromiley, volume one, pp. 452 - 454
A Greek-English Lexicon of the New Testament and other early Christian Literature, 3rd edition (BDAG), Frederick William Danker, pp. 525 - 526
Thayer’s Greek-English Lexicon of the New Testament, Joseph H. Thayer, p. 336
The Complete Wordstudy Dictionary of the New Testament, Warren Baker, Warren Baker, based on the lexicons of Edward Robinson & John Parkhurst, pp. 841 - 842
The New Strong’s expanded exhaustive concordance of the Bible (red-letter edition), James Strong, LL.D., S.T.D., p. 133