Morally, as Ephesians 2, Eph 1:5; Rom 6:11. In your sins (ἐν τοῖς παραπτῶμασιν) The best texts omit ἐν in, and the dative is instrumental, through or by. Rev., through your trespasses. See on Mat 6:14.
The uncircumcision of your flesh
That sinful, carnal nature of which uncircumcision was the sign, and which was the source of the trespasses. Compare Eph 2:11.
He quickened together (συνεζωοποίησεν)
Only here and Eph 2:5. Endowed with a new spiritual life, as Col 2:12. This issues in immortal life. Compare Eph 2:6.
Having forgiven us (χαρισάμενος ἡμῖν)
Freely (χάρις grace, free gift), as Luk 7:42; 2Co 2:7, 2Co 2:10; Col 3:13. Note the change of pronoun from you to us, believers generally, embracing himself. This change from the second to the first person, or, vice versa, is common in Paul's writings. See Col 1:10-13; Col 3:3, Col 3:4; Eph 2:2, Eph 2:3, Eph 2:13, Eph 2:14; Eph 4:31, Eph 4:32.