"But you are a chosen race, a royal priesthood, a holy nation, a people for his own possession, that you may proclaim the excellencies of Him who called you out of darkness into his marvelous light." [1 Peter 2:9]
"In Him, you also, after listening to the message of truth, the gospel of your salvation — having also believed, you were sealed in Him with the Holy Spirit of promise, who is given as a pledge of our inheritance, with a view to the redemption of God’s own possession, to the praise of His glory." [Ephesians 1:13-14]
So while you have to be incredibly careful, remember that Jesus has already won!
"Be sober-minded; be watchful. Your adversary the devil prowls around like a roaring lion, seeking someone to devour. [Ephesians 1:13-14]
Beloved, all it takes to defeat Satan is one prayer --- One prayer in Jesus' Name, that's all. As I mentioned in my previous article on the subject, Satan is the accuser of the brethren. He accuses us of our sins before God. Satan doesn't want God to extend grace and forgiveness to us, nor does He want us to receive God's grace. However, Satan is defeated already...! He was defeated at Calvary when Jesus was nailed to the Cross and died for our sins.
"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. [Revelation 12:10]
Hence, we are presented Holy and Blameless before God, having the Righteousness of Christ imputed to us.
To be holy (ἅγιος; hagios) means to be dedicated, pure and set apart from sin; not only in our position before the Lord, but also practically in our relationships with other people. To be blameless (ἄμωμος; amomos) means to be without fault or defect.
"God made Him who knew no sin to be sin on our behalf, so that in Him we might become the righteousness of God." [2 Corinthians 5:21]
So beloved, as Christians we must therefore continue to walk Holy and Blameless in His sight, for such a great sacrifice was made for us. He bore the cost of our sin on the Cross --- something we must never take for granted, or lightly. We have Salvation and Eternal Life through Him who loved us and knew us before we were even born.