The [Good News] of God, concerning His Son Jesus Christ our Lord, declared to be the Son of God with power according to the Spirit of holiness, by the resurrection from the dead. (Rom 1v1-4 with edits)
We know that Christ is new seated at the right hand of God and that all authority in heaven and on earth has been given into His hands. The verses above clearly our Lord has been established in this position, not by chance or with some slight advantage, but with power. Jesus had successfully destroyed all His enemies and throughout , whether in heaven or on earth, He was declared as the Son of God with power! Though there was a great cost in this victory, it did not weaken our Lord, but He was brought forth with His position at God’s right hand in no doubt. And it is wonderful that He is willing to share His victory with us.
We read later in Hebrews, the extent of Jesus' victory, since we no longer need to live in fear because... that through death he might destroy him that had the power of death, that is, the devil; And deliver them who through fear of death were all their lifetime subject to bondage. (Heb 2:14-15). The outworking of this victory, James sets out for us clearly when he says, Submit yourselves therefore to God. Resist the devil, and he will flee from you. (James 4:7). The devil and all his demons have no power over those that are Christ’s! What a marvellous victory Christ has won, and how blessed we are that we can share in it!