Matthew 5:37

But let your 'Yes' be 'Yes' and your 'No' be 'No.' Whatever is more than these is of the evil one.

James 5:12

But above all things, my brothers, do not swear, neither by heaven, nor by the earth, nor by any other oath; but let your "yes" be "yes," and your "no," "no;" so that you do not fall under judgment.

Matthew 13:19

When anyone hears the word of the Kingdom, and does not understand it, the evil one comes, and snatches away that which has been sown in his heart. This is what was sown by the roadside.

Matthew 13:38

and the field is the world; and the good seed, these are the sons of the Kingdom; and the tares are the sons of the evil one,

Matthew 15:19

For out of the heart come forth evil thoughts, murders, adulteries, sexual sins, thefts, false testimony, and blasphemies.

John 8:44

You are of your father, the devil, and you want to do the desires of your father. He was a murderer from the beginning, and does not stand in the truth, because there is no truth in him. When he speaks a lie, he speaks on his own; for he is a liar, and its father.

John 17:15

I pray not that you would take them from the world, but that you would keep them from the evil one.

2 Corinthians 1:17-20

When I therefore was thus determined, did I show fickleness? Or the things that I purpose, do I purpose according to the flesh, that with me there should be the "Yes, yes" and the "No, no?"

Ephesians 4:25

Therefore, putting away falsehood, speak truth each one with his neighbor. For we are members of one another.

Colossians 3:9

Do not lie to one another, seeing that you have put off the old man with his doings,

Colossians 4:6

Let your speech always be with grace, seasoned with salt, that you may know how you ought to answer each one.

2 Thessalonians 3:3

But the Lord is faithful, who will establish you, and guard you from the evil one.

1 John 2:13

I am writing to you, fathers, because you know him who is from the beginning. I write to you, young men, because you have overcome the evil one. I write to you, little children, because you know the Father.

1 John 3:12

unlike Cain, who was of the evil one, and killed his brother. Why did he kill him? Because his works were evil, and his brother's righteous.

1 John 5:18

We know that whoever is born of God does not sin, but he who was born of God protects him, and the evil one does not touch him.

Matthew 6:13

Let us not come into temptation, but deliver us from the evil one.'

Treasury of Scripture Knowledge

Summary

But let your communication be, Yea, yea; Nay, nay: for whatsoever is more than these cometh of evil.

Bible References

Let

2 Corinthians 1:17
When I therefore was thus determined, did I show fickleness? Or the things that I purpose, do I purpose according to the flesh, that with me there should be the "Yes, yes" and the "No, no?"
Colossians 4:6
Let your speech always be with grace, seasoned with salt, that you may know how you ought to answer each one.
James 5:12
But above all things, my brothers, do not swear, neither by heaven, nor by the earth, nor by any other oath; but let your "yes" be "yes," and your "no," "no;" so that you do not fall under judgment.

Cometh

Matthew 13:19
When anyone hears the word of the Kingdom, and does not understand it, the evil one comes, and snatches away that which has been sown in his heart. This is what was sown by the roadside.
Matthew 15:19
For out of the heart come forth evil thoughts, murders, adulteries, sexual sins, thefts, false testimony, and blasphemies.
John 8:44
You are of your father, the devil, and you want to do the desires of your father. He was a murderer from the beginning, and does not stand in the truth, because there is no truth in him. When he speaks a lie, he speaks on his own; for he is a liar, and its father.
Ephesians 4:25
Therefore, putting away falsehood, speak truth each one with his neighbor. For we are members of one another.
Colossians 3:9
Do not lie to one another, seeing that you have put off the old man with his doings,
James 5:12
But above all things, my brothers, do not swear, neither by heaven, nor by the earth, nor by any other oath; but let your "yes" be "yes," and your "no," "no;" so that you do not fall under judgment.