Quickened is being made alive by Jesus

. . . even when we were dead in sins. This spiritual resurrection is by the power of the Spirit.

Ephesians 2:4-6 But God, who is rich in mercy, for His great love wherewith He loved us, even when we were dead in sins hath quickened us together with Christ, (by grace ye are saved) and hath raised us up together and made us sit together in heavenly places in Christ Jesus:

The four Gospels record Jesus raising three people from the dead: the widow's son (Luke 7:11-17), Jairus' daughter (Luke 8:49-56), and Lazarus (John 11:41-46). In each case He spoke the Word and this gave life.

The Word of God is quick (living) and powerful. These three physical resurrections are pictures of the spiritual resurrection that comes to the sinner when he hears the Word and believes.

But our spiritual resurrection is much greater because it puts us in union with Christ: God "made us alive together with Christ". Because we are united to Christ, we have been exalted with Him and share His throne in the heavenlies.