Matthew 18:6-7
But whoever hinders one of these children who believe in me might better have a great millstone hung around his neck and be sunk in the open sea.
Romans 14:15
For if your brother's feelings are hurt by what you eat, your life is not governed by love. You must not, by what you eat, ruin a man for whom Christ died.
Romans 14:21
The right thing to do is to eat no meat at all and to drink no wine or do anything else if it hurts your brother's conscience.
1 Corinthians 8:11-13
For this overscrupulous brother, for whom Christ died, is ruined by what you call your knowledge.
1 Peter 2:9
But you are the chosen race, the royal priesthood, the consecrated nation, his own people, so that you may declare the virtues of him who has called you out of darkness into his wonderful light;