Job 20:12

Though evil-doing is sweet in his mouth, and he keeps it secretly under his tongue;

Job 15:16

How much less one who is disgusting and unclean, a man who takes in evil like water!

Psalm 10:7

His mouth is full of cursing and deceit and false words: under his tongue are evil purposes and dark thoughts.

Genesis 3:6

And when the woman saw that the tree was good for food, and a delight to the eyes, and to be desired to make one wise, she took of its fruit, and gave it to her husband.

Psalm 109:17-18

As he took pleasure in cursing, so let it come on him; and as he had no delight in blessing, let it be far from him.

Proverbs 9:17-18

Drink taken without right is sweet, and food in secret is pleasing.

Proverbs 20:17

Bread of deceit is sweet to a man; but after, his mouth will be full of sand.

Ecclesiastes 11:9

Have joy, O young man, while you are young; and let your heart be glad in the days of your strength, and go in the ways of your heart, and in the desire of your eyes; but be certain that for all these things God will be your judge.

Treasury of Scripture Knowledge

Summary

Though wickedness be sweet in his mouth, though he hide it under his tongue;

Bible References

Wickedness

Job 15:16
How much less one who is disgusting and unclean, a man who takes in evil like water!
Genesis 3:6
And when the woman saw that the tree was good for food, and a delight to the eyes, and to be desired to make one wise, she took of its fruit, and gave it to her husband.
Proverbs 9:17
Drink taken without right is sweet, and food in secret is pleasing.
Proverbs 20:17
Bread of deceit is sweet to a man; but after, his mouth will be full of sand.
Ecclesiastes 11:9
Have joy, O young man, while you are young; and let your heart be glad in the days of your strength, and go in the ways of your heart, and in the desire of your eyes; but be certain that for all these things God will be your judge.

He hide

Psalm 10:7
His mouth is full of cursing and deceit and false words: under his tongue are evil purposes and dark thoughts.
Psalm 109:17
As he took pleasure in cursing, so let it come on him; and as he had no delight in blessing, let it be far from him.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain