And you, being dead in your sins and the uncircumcision of your flesh, hath he quickened together with him, having forgiven you all trespasses;
And you (like others), being dead - formerly (Ephesians 2:1-2); even as Christ was dead, before that God raised Him "from the dead" (Colossians 2:12).
Sins - rather, as at end of this verse, "trespasses," transgressions х paraptoomata (G3900)], actual fallings aside, as that of Adam.
Uncircumcision of your flesh - your not having put off the old fleshly nature (of which the foreskin was the visible badge), the foreskin of original sin, which now by spiritual circumcision you have put off (Jeremiah 4:4).
He (God) quickened together with Him - Christ (Romans 8:11; Ephesians 2:5). But Ellicott, because of Colossians 2:14-15, 'Christ-together with Himself.' What is done in Christ, is by the very fact done in all one with Him. As Christ's resurrection proved He was delivered from the sin laid on Him, so our spiritual quickening proves we have been forgiven our sins (1 Peter 3:22; 1 Peter 4:1-2).
Forgiven you. So B (Lachmann: Tischendorff denies) C, Vulgate. 'Aleph (') A Delta G f g read 'us,' passing from the Colossians to the general church (Colossians 1:14; Ephesians 1:7). All trespasses - Greek, 'all our х ta (G3588)] trespasses:' the cause of 'deadness.'