"No weapon that is formed against thee shall prosper; and every tongue that shall rise against thee in judgment thou shalt condemn.
This is the heritage of the servants of the LORD, and their righteousness is of me, saith the LORD. Isaiah 54:17"
The children of God have many heritages, two of which have been mentioned above. The first is "no weapon that wages war against you shall prosper"; the weapons of the enemy are deceit, lies, doubt, immorality, sickness etc.
The second is "every tongue that shall rise against you in judgment you shall condemn", meaning that any tongue that speaks against you with the intention of judging you, you shall bring it to naught.
The devil and his cohorts of darkness can throw their best weapons but they will surely fail; they can speak their best language against you but you shall silence it. Praise the LORD!
Always believe in the Lord he is there for you.