Nehemiah 6:5

Then Sanballat sent his servant to me a fifth time with an open letter in his hand.

2 Kings 18:26-28

Then Eliakim son of Hilkiah, and Shebna and Joah said to the Rabshakeh (the commander): Will you kindly make use of the Aramaean language in talking to your servants. We are used to it. Do not use the Jews' language in the hearing of the people on the wall.

2 Corinthians 2:11

that no advantage may be gained over us by Satan: for we are not ignorant of his devices.

2 Corinthians 11:13-15

For such men are false apostles, deceitful workers, fashioning themselves into apostles of Christ.

Ephesians 6:11

Put on the full armor (every implement) of God, that you may be able to stand against the cunning (inventive) (clever) methods of the devil.

2 Thessalonians 2:10

He will use every kind of wicked deceit on those who will perish. They will perish because they did not welcome and love the truth so as to be saved.

Treasury of Scripture Knowledge

Summary

Then sent Sanballat his servant unto me in like manner the fifth time with an open letter in his hand;

Bible References

With an open letter

2 Kings 18:26
Then Eliakim son of Hilkiah, and Shebna and Joah said to the Rabshakeh (the commander): Will you kindly make use of the Aramaean language in talking to your servants. We are used to it. Do not use the Jews' language in the hearing of the people on the wall.
2 Corinthians 2:11
that no advantage may be gained over us by Satan: for we are not ignorant of his devices.
2 Corinthians 11:13
For such men are false apostles, deceitful workers, fashioning themselves into apostles of Christ.
Ephesians 6:11
Put on the full armor (every implement) of God, that you may be able to stand against the cunning (inventive) (clever) methods of the devil.
2 Thessalonians 2:10
He will use every kind of wicked deceit on those who will perish. They will perish because they did not welcome and love the truth so as to be saved.