Matthew 18:6-7
but whosoever shall lay a stumbling-block in the way of one of these little ones, who believe in me, it were better for him that a milstone were hung on his neck, and that he were thrown into the sea.
Romans 14:15
But if thy brother be grieved by thy food, thou dost not herein walk in love. Do not by thy food destroy him, for whom Christ died.
Romans 14:21
It is good not to eat flesh, nor to drink wine, nor to do any thing at which thy brother stumbleth, or is offended, or weakened.
1 Corinthians 8:11-13
and so the weak brother, for whom Christ died, shall perish by thy knowledge?
1 Peter 2:9
But ye are a chosen generation, a royal priesthood, a holy nation, a peculiar people; that ye should declare the glories of Him, who hath called you out of darkness into his marvellous light: