Rom 8:1 1There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit. Believers did not know it until they had it revealed to them by The Spirit. There has never been anyone in Christ who God condemns. Just exactly when are those Christ died for, begin to be in Christ Jesus ? Well in the Reckoning and Purpose of God, they were in Christ Jesus before the World began, when Grace was given them in Him then 2 Tim 1:9 9Who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the world began, This was before they merited the condemnation they did in Adam in Time Rom 5:18a 18Therefore as by the offence of one judgment came upon all men to condemnation; But this their condemnation, was not imputed to them, God did not charge them with it, but He charged it to Christ Jesus their Head ! The condemnation incurred them in Adam was not charged to them legally, because they were in Christ Jesus their Head ! Now this non condemnation is not known to them until their New Birth by the Spirit, then or Now they do walk according to the Spirit's revelation. So now it can be said Rom 8:1 1There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit. The Now emphasizes the coming into the Knowledge of it , but not the sentence of it just then being True from God's Perspective. For God never imputed any sin unto them in the First Place, but to Christ in their stead !