Matthew 5:37

But let your word be Yea, yea, and No, no: but that above this is of evil.

James 5:12

And before all things, my brethren, swear not, neither by heaven, nor by earth, nor any other oath: and let your yea be yea; and nay, nay; that ye fall not under. judgment.

Matthew 13:19

Every one hearing, and not understanding, the evil one comes, and carries off that sown in his heart. This is he having sown by the way.

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 from the heart come forth evil reflections, slaughters, adulteries, fornications, thefts, false testimonies, defamations:

John 8:44

Ye are of your father the devil, and the eager desires of your father will ye do. He was slaying men from the beginning, and stood not in the truth, for there is no truth in him. When he would speak a lie, he speaks of his own things; for he is a liar, and the father of him.

John 17:15

I ask not that thou take them out of the world, but that thou keep them from the evil.

2 Corinthians 1:17-20

Therefore I resolved this, much less did I use levity: or what I resolve, do I resolve according to the flesh, that there be with me yea, yea, and nay, nay

Ephesians 4:25

Wherefore falsehood ye having put away, speak the truth each with his neighbor: for ye are members one of another.

Colossians 3:9

Lie not to one another, having put off the old man with big deeds;

Colossians 4:6

Your word always in grace, Seasoned with salt, to know how it is fitting for you to answer one another.

2 Thessalonians 3:3

But the Lord is faithful, who supports you, and will watch from the evil.

1 John 2:13

I write to you, fathers, for ye have known him from the beginning. I write to you, young men, for ye have conquered the evil. I write to you, young children, for ye have known the Father.

1 John 3:12

Not as Cain was of the evil one, and slew his brother. And for what slew he him? Because his works were evil, and those of his brother just.

1 John 5:18

We know that every one born of God sins not; but he born of God keeps himself, and evil touches him not.

Matthew 6:13

And thou shouldst not lead us into temptation, but deliver thou us from evil. For thine is the kingdom, and the power, and the glory, forever. Amen.

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
Therefore I resolved this, much less did I use levity: or what I resolve, do I resolve according to the flesh, that there be with me yea, yea, and nay, nay
Colossians 4:6
Your word always in grace, Seasoned with salt, to know how it is fitting for you to answer one another.
James 5:12
And before all things, my brethren, swear not, neither by heaven, nor by earth, nor any other oath: and let your yea be yea; and nay, nay; that ye fall not under. judgment.

Cometh

Matthew 13:19
Every one hearing, and not understanding, the evil one comes, and carries off that sown in his heart. This is he having sown by the way.
Matthew 15:19
For from the heart come forth evil reflections, slaughters, adulteries, fornications, thefts, false testimonies, defamations:
John 8:44
Ye are of your father the devil, and the eager desires of your father will ye do. He was slaying men from the beginning, and stood not in the truth, for there is no truth in him. When he would speak a lie, he speaks of his own things; for he is a liar, and the father of him.
Ephesians 4:25
Wherefore falsehood ye having put away, speak the truth each with his neighbor: for ye are members one of another.
Colossians 3:9
Lie not to one another, having put off the old man with big deeds;
James 5:12
And before all things, my brethren, swear not, neither by heaven, nor by earth, nor any other oath: and let your yea be yea; and nay, nay; that ye fall not under. judgment.