Matthew 18:6-7
but whoever ensnares one of these little ones that believe in me, it were better for him that a millstone were hung about his neck, and that he were drowned in the depth of the sea.
Romans 14:15
But if your brother is grieved on account of your food, you no longer walk according to love. Do not, with your food, destroy him, for whom Christ died.
Romans 14:21
It is good neither to eat flesh, nor to drink wine, nor to do any thing by which your brother stumbles, or is ensnared, or is made weak.
1 Corinthians 8:11-13
and will not the weak brother, for whom Christ died, perish through your knowledge?
1 Peter 2:9
But you are a chosen race, a royal priesthood, a holy nation, a purchased people, that you should show forth the virtues of him who has called you out of darkness into his wonderful light: