Romans 3:19

it saith to those under the law: that every mouth may be stopped, and all the world obnoxious to the justice of God.

Titus 1:10-11

For there are many disorderly persons, vain-talkers and deceivers, especially those of the circumcision; whose mouths must be stopped:

Hebrews 6:13

For when God made the promise to Abraham, because He could swear by no greater, He sware by Himself, saying,

Treasury of Scripture Knowledge

Summary

But the king shall rejoice in God; every one that sweareth by him shall glory: but the mouth of them that speak lies shall be stopped.

Sweareth

Bible References

Sweareth

Hebrews 6:13
For when God made the promise to Abraham, because He could swear by no greater, He sware by Himself, saying,

The mouth

Romans 3:19
it saith to those under the law: that every mouth may be stopped, and all the world obnoxious to the justice of God.
Titus 1:10
For there are many disorderly persons, vain-talkers and deceivers, especially those of the circumcision; whose mouths must be stopped: