Rev., more accurately, were buried. Therefore, as a natural consequence of death. There is probably an allusion to the immersion of baptism. Compare Col 3:3.
Into death
Through the baptism into death referred to in Rom 6:3. Both A.V. and Rev. omit the article, which is important for the avoidance of the error buried into death.
Glory (δόξης)
The glorious collective perfection of God. See on Rom 3:23. Here the element of power is emphasized, which is closely related to the idea of divine glory. See Col 1:11. All the perfections of God contribute to the resurrection of Christ - righteousness, mercy, wisdom, holiness.
We might walk (περιπατήσωμεν)
Lit., walk about, implying habitual conduct. See on Joh 11:9; see on 1Jo 1:6; see on 3Jo 1:4; see on Luk 11:44.
In newness of life (ἐν καινότητι ζωῆς)
A stronger expression than new life. It gives more prominence to the main idea, newness, than would be given by the adjective. Thus 1Ti 6:17, uncertainty of riches; not uncertain riches, as A.V.