Jamieson, Fausset and Brown on Ephesians 2:6

6. raised us up together--with Christ. The "raising up" presupposes previous quickening of Jesus in the tomb, and of us in the grave of our sins.

made us sit together--with Christ, namely, in His ascension. Believers are bodily in heaven in point of right, and virtually so in spirit, and have each their own place assigned there, which in due time they shall take possession of (Php 3:20, 21). He does not say, "on the right hand of God"; a prerogative reserved to Christ peculiarly; though they shall share His throne (Re 3:21).

in Christ Jesus--Our union with Him is the ground of our present spiritual, and future bodily, resurrection and ascension. "Christ Jesus" is the phrase mostly used in this Epistle, in which the office of the Christ, the Anointed Prophet, Priest and King, is the prominent thought; when the Person is prominent, "Jesus Christ" is the phrase used.