'Dead' in the Bible

He is also the head [the life-source and leader] of the body, the church; and He is the beginning, the firstborn from the dead, so that He Himself will occupy the first place [He will stand supreme and be preeminent] in everything.

having been buried with Him in baptism and raised with Him [to a new life] through [your] faith in the working of God, [as displayed] when He raised Christ from the dead.

When you were dead in your sins and in the uncircumcision of your flesh (worldliness, manner of life), God made you alive together with Christ, having [freely] forgiven us all our sins,

Therefore if you have been raised with Christ [to a new life, sharing in His resurrection from the dead], keep seeking the things that are above, where Christ is, seated at the right hand of God.