“And the fourth kingdom shall be as strong as iron, inasmuch as iron breaks in pieces and shatters all things; and like iron that crushes, that kingdom will break in pieces and crush all the others.” Daniel 2:40.
“The heart is deceitful above all things, and desperately wicked; who can know it? I, the Lord, search the heart, I test the mind, even to give every man according to his ways, and according to the fruit of his doings.” Jeremiah 17:9-10.
“For by one offering He [Jesus Christ] has perfected forever those who are being sanctified [set apart]. But the Holy Spirit also witnesses to us; for after He had said before, ‘This is the covenant that I will make with them after those days, says the Lord: I will put My laws into their hearts, and in their minds I will write them,’ then He adds, ‘Their sins and their lawless deeds I will remember no more.’” Hebrews 10:14-17.
The dictionary defines evil as, morally wrong; immoral; wicked. It could be something harmful or injurious; the synonyms though may be the best descriptions.
Depending on how it is used evil can be; sinful, iniquitous, depraved, base, vile, nefarious, pernicious, destructive, wickedness, unrighteousness, or corruption, to name a few.
“A worthless person, a wicked man, walks with a perverse mouth [fraudulent deceitful speech]; he winks with his eyes, he shuffles his feet, he points with his fingers; perversity is in his heart, he devises evil continually, he sows discord. Therefore his calamity shall come suddenly; suddenly he shall be broken without remedy.” Proverbs 6:12-15.
“These six things the Lord hates, yes, seven are an abomination to Him: a proud look, a lying tongue, hands that shed innocent blood, a heart that devises wicked plans, feet that are swift in running to evil, a false witness who speaks lies, and one who sows discord among brethren.” Proverbs 6:16-19.