1 Timothy 4:1-5 (ESV)
1 Now the Spirit expressly says that in later times some will depart from the faith by devoting themselves to deceitful spirits and teachings of demons,
2 through the insincerity of liars whose consciences are seared,
3 who forbid marriage and require abstinence from foods that God created to be received with thanksgiving by those who believe and know the truth.
4 For everything created by God is good, and nothing is to be rejected if it is received with thanksgiving,
5 for it is made holy by the word of God and prayer.