Matthew 18:18

I assure you and most solemnly say to you, whatever you bind (forbid, declare to be improper and unlawful) on earth shall have (already) been bound in heaven, and whatever you loose (permit, declare lawful) on earth shall have (already) been loosed in heaven.

We cannot be silent Christians and overcome the attacks on the enemy. When we are active in our believing and speaking, we will be actively removing the barriers to whatever is coming against us in our life. The enemy is afraid of us using our authority and tearing down the strongholds. We cannot give up or give in but stand on the word of God.