Guess where you and I are seated today? In Christ!
"But God, who is rich in mercy, for his great love wherewith he loved us, 5Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved;) 6And hath raised us up together, and made us sit together in heavenly places in Christ Jesus: 7That in the ages to come he might shew the exceeding riches of his grace in his kindness toward us through Christ Jesus. 8For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:" (Ephesians 2: 4-8)
"18That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us: 19Which hope we have as an anchor of the soul, both sure and stedfast, and which entereth into that within the veil; 20Whither the forerunner is for us entered, even Jesus, made an high priest for ever after the order of Melchisedec." (Hebrews 6: 18-20)
We bring our minds into captivity to the following:
Jesus died for all our sins.
He rose again from the dead for our justification -- we are declared the righteousness of God in Christ (2 Corinthians 5: 21)
He sits at the right hand of God the Father, and we are seated in Christ at the Father's side, too.
He is our High Priest Forever, and we can rest assured that He cleanses away our sins forever:
"1My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous: 2And he is the propitiation for our sins: and not for ours only, but also for the sins of the whole world." (1 John 2: 1-2)
What else has come through for me in all of this?
We are not bringing our thoughts into captivity to an idea, but to a Person, to a Real Event.
Not a figment of our imagination.
It is not true because we believe it, we believe it because it is true.
It is not true because we keep believing it. We keep believing it because it is true.
When we bring our thoughts into captivity to Christ's obedience, let us also remember that we are in Christ today, for that is the full culmination of His obedience:
"Herein is love perfected among us, that we may have boldness in the day of judgment, because as He is, so are we in this world." (1 John 4: 17)