James 3:10

Out of the same mouth goes forth blessing and cursing. It is not right, my brethren, that these things should be thus.

Genesis 20:9

And Abimelech called Abraham and said to him, What hast thou done to us? And in what have I sinned against thee, that thou hast brought on me, and on my kingdom, a great sin? Thou hast done to me deeds that ought not to be done.

2 Samuel 13:12

And she said to him, No, my brother, do not humble me; for no such thing is done in Israel: do not this infamy.

Psalm 50:16-20

But unto the wicked God saith, What hast thou to do to declare my statutes, or that thou shouldest take my covenant into thy mouth,

Jeremiah 7:4-10

Confide ye not in words of falsehood, saying, Jehovah's temple, Jehovah's temple, Jehovah's temple is this.

Micah 3:11

The heads thereof judge for reward, and the priests thereof teach for hire, and the prophets thereof divine for money; yet do they lean upon Jehovah, and say, Is not Jehovah in the midst of us? no evil shall come upon us.

Romans 12:14

Bless them that persecute you; bless, and curse not.

1 Corinthians 3:3

for ye are yet carnal. For whereas there are among you emulation and strife, are ye not carnal, and walk according to man?

1 Timothy 5:13

And, at the same time, they learn also to be idle, going about to people's houses; and not only idle, but also gossipers and meddlers, speaking things not becoming.

1 Peter 3:9

not rendering evil for evil, or railing for railing; but on the contrary, blessing others, because ye have been called to this, that ye should inherit blessing.

Treasury of Scripture Knowledge

Summary

Out of the same mouth proceedeth blessing and cursing. My brethren, these things ought not so to be.

Bible References

Of

Psalm 50:16
But unto the wicked God saith, What hast thou to do to declare my statutes, or that thou shouldest take my covenant into thy mouth,
Jeremiah 7:4
Confide ye not in words of falsehood, saying, Jehovah's temple, Jehovah's temple, Jehovah's temple is this.
Micah 3:11
The heads thereof judge for reward, and the priests thereof teach for hire, and the prophets thereof divine for money; yet do they lean upon Jehovah, and say, Is not Jehovah in the midst of us? no evil shall come upon us.
Romans 12:14
Bless them that persecute you; bless, and curse not.
1 Peter 3:9
not rendering evil for evil, or railing for railing; but on the contrary, blessing others, because ye have been called to this, that ye should inherit blessing.

These

Genesis 20:9
And Abimelech called Abraham and said to him, What hast thou done to us? And in what have I sinned against thee, that thou hast brought on me, and on my kingdom, a great sin? Thou hast done to me deeds that ought not to be done.
2 Samuel 13:12
And she said to him, No, my brother, do not humble me; for no such thing is done in Israel: do not this infamy.
1 Corinthians 3:3
for ye are yet carnal. For whereas there are among you emulation and strife, are ye not carnal, and walk according to man?
1 Timothy 5:13
And, at the same time, they learn also to be idle, going about to people's houses; and not only idle, but also gossipers and meddlers, speaking things not becoming.

General references

Matthew 15:18
but the things which go forth out of the mouth come out of the heart, and those defile man.
Romans 3:14
whose mouth is full of cursing and bitterness;
Romans 12:14
Bless them that persecute you; bless, and curse not.