Paul was not lying or pulling a fast one on the congregrants who heard him that day.
We are justified from ALL things through Christ Jesus.
Every time we sin or fail, not once should we feel condemned or guilty. Despite the arguments of this fallen world, and man's fleshy nature, man is not set free from sin with more shame, condemnation, and remonstrances.
It is the grace of God which teaches us to say NO! to sin and yes to godliness:
"For the grace of God that bringeth salvation hath appeared to all men, 12Teaching us that, denying ungodliness and worldly lusts, we should live soberly, righteously, and godly, in this present world; 13Looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ; 14Who gave himself for us, that he might redeem us from all iniquity, and purify unto himself a peculiar people, zealous of good works." (Titus 2: 11-14)
There is no condemnation at all in Christ Jesus -- none (Romans 8:1), and there is no qualification to it.
Consider how often the New Testament writers use "All" to inform us that we are justified in every way:
"And you, being dead in your sins and the uncircumcision of your flesh, hath he quickened together with him, having forgiven you all trespasses; 14Blotting out the handwriting of ordinances that was against us, which was contrary to us, and took it out of the way, nailing it to his cross;15And having spoiled principalities and powers, he made a shew of them openly, triumphing over them in it." (Colossians 2: 13-15)
Notice "having forgiven you all trespasses" -- all.
"But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin." (1 John 1: 7)
"All sin" - and walking in the light as about where and in whom we walk, identify - and that is Jesus!
"If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness." (1 John 1: 9)
Confession of sins speaks of our sin nature, - and notice that He cleanses us from all -- all! -- unrighteousness.
We are justified from all things through Christ Jesus -- all! No limits, no setbacks, no wondering whether His blood will still cleanse us tomorrow.