Matthew 23:28

so do ye likewise outwardly appear to men to be righteous, but within are full of hypocrisy and iniquity.

Matthew 23:5

but they do all their works to be seen by men; they make their phylacteries broad, and enlarge the fringes of their garments,

Matthew 12:34-35

O race of vipers, how can ye speak good things, who are yourselves so wicked? for out of the abundance of the heart the mouth speaketh.

Matthew 15:19-20

For out of the heart proceed wicked disputings, murders, adulteries, fornications, thefts, false-witnessings, slanders:

Mark 7:21-23

for out of the heart of men proceed evil thoughts,

Luke 16:15

And He said unto them, Ye justify yourselves before men, but God knoweth your hearts: for that which is highly esteemed among men is abomination in the sight of God.

Hebrews 4:12-13

For the word of God is lively and efficacious, and sharper than any two-edged sword, piercing even to the dividing of soul and spirit, and of the very joints and marrow, and judging the thoughts and intentions of the heart.

Treasury of Scripture Knowledge

Summary

Even so ye also outwardly appear righteous unto men, but within ye are full of hypocrisy and iniquity.

Bible References

Ye also

Matthew 23:5
but they do all their works to be seen by men; they make their phylacteries broad, and enlarge the fringes of their garments,
Luke 16:15
And He said unto them, Ye justify yourselves before men, but God knoweth your hearts: for that which is highly esteemed among men is abomination in the sight of God.
Hebrews 4:12
For the word of God is lively and efficacious, and sharper than any two-edged sword, piercing even to the dividing of soul and spirit, and of the very joints and marrow, and judging the thoughts and intentions of the heart.

But

Matthew 12:34
O race of vipers, how can ye speak good things, who are yourselves so wicked? for out of the abundance of the heart the mouth speaketh.
Matthew 15:19
For out of the heart proceed wicked disputings, murders, adulteries, fornications, thefts, false-witnessings, slanders:
Mark 7:21
for out of the heart of men proceed evil thoughts,