Possible meanings are 1) because God has caused Christ to come alive again, God has already given the believers in Colossae new spiritual life. AT: "God has given you new life because you belong to Christ" or 2) because God has caused Christ to come alive again, the believers in Colossae can know that after they die they will live with Christ, and Paul can speak of the believers living again as if it has already happened. AT: "you can be sure that God will give you life as he has caused Christ to come alive again" (See: [[rc://en/ta/man/translate/figs-pastforfuture]])
To sit at the "right hand of God" is a symbolic action of receiving great honor and authority from God. AT: "where Christ is sitting in the place of honor and authority beside God" (See: [[rc://en/ta/man/translate/translate-symaction]])
Paul speaks of people's lives as if they were objects that can be hidden in containers and speaks of God as if he were a container. AT: Possible meanings are 1) "it is as though God has taken your life and concealed it with Christ in God's presence" or 2) "only God knows what your true life really is, and he will reveal it when he reveals Christ" (See: [[rc://en/ta/man/translate/figs-activepassive]] and [[rc://en/ta/man/translate/figs-metaphor]])