"And you, being dead in your sins and the uncircumcision of your flesh, hath he quickened together with him, having forgiven you all trespasses." (Colossians 2:13)
In "Word Focus" William Sillings writes,

Colossians 2:13 says two things about our sins. One, being dead (nekrous ontas) uses the present participle “being” to describe our deadness as a continual state of existence. We not only died by sinning once, but we were in a state of deadness brought on by continual sinning and by the nature of sin in our lives. The second thing Paul said is that he quickened [us] together with him. Quickened (sunezoopoiesen — aorist active indicative) means “He made us alive together with Him.” We were dead, but now we are alive.

Discussion: What is the significance of being "made ... alive together with Him"?
Source: Miracles of Jesus: Adult Teacher's Insights, page 10.