Ephesians 4:22-24 King James Version (KJV)
22 That ye put off concerning the former conversation the old man, which is corrupt according to the deceitful lusts;
23 And be renewed in the spirit of your mind;
24 And that ye put on the new man, which after God is created in righteousness and true holiness.
We all, as Christians, struggle against the flesh, the world, and the devil. Lusts are of the flesh, and are sin. Deceitful means they seem great at the moment, but if we’d stop and let the Holy Spirit lead us, and teach us about that lust, we’d do a LOT less sinning, and asking God for His forgiveness and mercies on us.
Galatians 5:19-21 King James Version (KJV)
19 Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness,20 Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies,
21 Envyings, murders, drunkenness, revellings, and such like: of the which I tell you before, as I have also told you in time past, that they which do such things shall not inherit the kingdom of God.
How many of these are you guilty of, and have you repented and asked God to cleanse you from all unrighteousness?
Do you see yourself here, too?  Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened.
 Professing themselves to be wise, they became fools,
 And changed the glory of the uncorruptible God into an image made like to corruptible man, and to birds, and fourfooted beasts, and creeping things.
 Wherefore God also gave them up to uncleanness through the lusts of their own hearts, to dishonour their own bodies between themselves:
 Who changed the truth of God into a lie, and worshipped and served the creature more than the Creator, who is blessed for ever. Amen.
 For this cause God gave them up unto vile affections: for even their women did change the natural use into that which is against nature:
 And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompence of their error which was meet.
 And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind, to do those things which are not convenient;
 Being filled with all unrighteousness, fornication, wickedness, covetousness, maliciousness; full of envy, murder, debate, deceit, malignity; whisperers,
 Backbiters, haters of God, despiteful, proud, boasters, inventors of evil things, disobedient to parents,
 Without understanding, covenantbreakers, without natural affection, implacable, unmerciful:
 Who knowing the judgment of God, that they which commit such things are worthy of death, not only do the same, but have pleasure in them that do them.