And they overcame him by the blood of the Lamb

"And I heard a loud voice saying in heaven, Now is come salvation, and strength, and the kingdom of our God, and the power of his Christ: for the accuser of our brethren is cast down, which accused them before our God day and night. And they overcame him by the blood of the Lamb…"(Rev. 12:10).

God has given believers the power to overcome sin and Satan through the blood of the lamb. Because of the blood that Jesus shed on the cross the sins of all who trust him as Savior and Lord have been washed away giving them access to God. By this access to God we can know Him through His word and Spirit in way that enables us to overcome the power of the enemy. Although being a Christian doesn't mean that we will be sinless, it does mean that we will not sin and get away with it. When a Christian sins God's Spirit will convict us and if need be God will discipline us in love as a Father a son in order that we might confess that sin, be cleansed and yield the fruit of righteousness (Hebrews 12).

But watch out for the accuser of the brethren (Satan) who will come against you to defeat you. And one of His strategies is to overwhelm you with guilt and feelings of condemnation. You can't fight sin and Satan adequately if you’re feeling condemn by Satan for past sins that have already been covered by the blood. Adrian Rogers use to say that we must discern the difference between the conviction of the Holy Spirit and the accusations of Satan. The Spirit will convict you of sin so that you would seek God's forgiveness and cleansing (1 John 1:9). But Satan will accuse you in order that you might feel forsaken by God and condemned. If you’re feeling condemned by your sin when you already confessed that sin to God, remember that there's power in the blood. I'm reminded of that old hymn of the Church:

Would you be free from the burden of sin?
There’s pow’r in the blood, pow’r in the blood;
Would you o’er evil a victory win?
There’s wonderful pow’r in the blood.

Refrain:

There is pow’r, pow’r, wonder-working pow’r
In the blood of the Lamb;
There is pow’r, pow’r, wonder-working pow’r
In the precious blood of the Lamb.

Would you be free from your passion and pride?
There’s pow’r in the blood, pow’r in the blood;
Come for a cleansing to Calvary’s tide;
There’s wonderful pow’r in the blood.

Would you be whiter, much whiter than snow?
There’s pow’r in the blood, pow’r in the blood;
Sin-stains are lost in its life-giving flow;
There’s wonderful pow’r in the blood.

Would you do service for Jesus your King?
There’s pow’r in the blood, pow’r in the blood;
Would you live daily His praises to sing?
There’s wonderful pow’r in the blood.

Overcome the enemy by trusting in the power of the blood of Jesus.