Jer 17:5
5 This is what the LORD says: "Cursed is the one who trusts in man, who depends on flesh for his strength and whose heart turns away from the LORD. (NIV)
1 Tim 4:1-7
1 The Spirit clearly says that in later times some will abandon the faith and follow deceiving spirits and things taught by demons.
2 Such teachings come through hypocritical liars, whose consciences have been seared as with a hot iron.
3 They forbid people to marry and order them to abstain from certain foods, which God created to be received with thanksgiving by those who believe and who know the truth.
4 For everything God created is good, and nothing is to be rejected if it is received with thanksgiving,
5 because it is consecrated by the word of God and prayer.
6 If you point these things out to the brothers, you will be a good minister of Christ Jesus, brought up in the truths of the faith and of the good teaching that you have followed.
7 Have nothing to do with godless myths and old wives' tales; rather, train yourself to be godly. (NIV)
More information is available at http://www.evangelicaloutreach.org/catholic.htm.
Ezek 33:12-20
12 "Therefore, son of man, say to your countrymen, 'The righteousness of the righteous man will not save him when he disobeys, and the wickedness of the wicked man will not cause him to fall when he turns from it. The righteous man, if he sins, will not be allowed to live because of his former righteousness.'
13 If I tell the righteous man that he will surely live, but then he trusts in his righteousness and does evil, none of the righteous things he has done will be remembered; he will die for the evil he has done.
14 And if I say to the wicked man, 'You will surely die,' but he then turns away from his sin and does what is just and right--
15 if he gives back what he took in pledge for a loan, returns what he has stolen, follows the decrees that give life, and does no evil, he will surely live; he will not die.
16 None of the sins he has committed will be remembered against him. He has done what is just and right; he will surely live.
17 "Yet your countrymen say, 'The way of the Lord is not just.' But it is their way that is not just.
18 If a righteous man turns from his righteousness and does evil, he will die for it.
19 And if a wicked man turns away from his wickedness and does what is just and right, he will live by doing so.
20 Yet, O house of Israel, you say, 'The way of the Lord is not just.' But I will judge each of you according to his own ways." (NIV)