John Gill's Bible Commentary Ver. 2. For their heart studieth destruction , etc.] To others; to good men, that separate from them, and reprove them, or are in their way; or any ways hinder them in the prosecution of their wicked designs; as Haman’s heart studied the destruction of the Jews: or their hearts study to draw men into their destructive methods of living, and therefore should be shunned and avoided. Moreover, their hearts study destruction to themselves; they study what they shall eat and drink, which they pursue to intemperance; and how they shall compass their lewd designs, and which issue in their ruin; destruction and misery are in all the ways they devise and walk in; and their lips talk of mischief ; which they study in their hearts against others; as are their hearts, so are their lips; out of the abundance of the wickedness of their hearts their mouths speak mischievous things; and which, though they design for others, oftentimes fall upon themselves.
Matthew Henry Commentary
Verses 1, 2 - Envy not sinners. And let not a desire ever come into thy mind, Oh tha I could shake off restraints!
Original Hebrew כי3588 שׁד7701 יהגה1897 לבם3820 ועמל5999 שׂפתיהם8193 תדברנה׃1696