Luke 20:8
And Jesus said to them, Neither do I tell you by what authority I do these things.
Ephesians 5:5
For of this ye are sure, since ye know that no whoremonger, nor unclean person, nor covetous man, who is an idolater, hath an inheritance in the kingdom of Christ and God.
1 Peter 2:8
and "a stone of stumbling, and a rock to strike against;" even to those who stumble, being disobedient to the word; to which they were also appointed.
Revelation 2:14
But I have a few things against thee; thou hast there them that hold the teaching of Balaam, who taught Balak to put a stumblingblock in the way of the sons of Israel, and to eat things sacrificed to idols, and to commit fornication.