Warnings of Jesus:
Do not cause others to sin!

But if anyone causes one of these little ones who believe in Me to stumble, it would be better for him to have a large millstone hung around his neck and to be drowned in the depths of the sea. Matthew 18:6

But if anyone causes one of these little ones who believe in Me to stumble, it would be better for him to have a large millstone hung around his neck and to be thrown into the sea. Mark 9:42

Jesus said to His disciples, “It is inevitable that stumbling blocks will come, but woe to the one through whom they come! It would be better for him to have a millstone hung around his neck and to be thrown into the sea than to cause one of these little ones to stumble. Luke 17:1-2

Woe to the world for the causes of sin. These stumbling blocks must come, but woe to the man through whom they come! Matthew 18:7

If your hand or your foot causes you to sin, cut it off and throw it away. It is better for you to enter life crippled or lame than to have two hands and two feet and be thrown into the eternal fire. And if your eye causes you to sin, gouge it out and throw it away. It is better for you to enter life with one eye than to have two eyes and be thrown into the fire of hell. See that you do not look down on any of these little ones. For I tell you that their angels in heaven always see the face of My Father in heaven. Matthew 18:8-11

But if anyone causes one of these little ones who believe in Me to stumble, it would be better for him to have a large millstone hung around his neck and to be thrown into the sea. If your hand causes you to sin, cut it off. It is better for you to enter life crippled than to have two hands and go into hell, into the unquenchable fire.-- If your foot causes you to sin, cut it off. It is better for you to enter life lame than to have two feet and be thrown into hell. And if your eye causes you to sin, pluck it out. It is better for you to enter the kingdom of God with one eye than to have two eyes and be thrown into hell, where ‘their worm never dies, and the fire is never quenched.’ Mark 9:42-48

The Son of Man will send out His angels, and they will weed out of His kingdom every cause of sin and all who practice lawlessness. And they will throw them into the fiery furnace, where there will be weeping and gnashing of teeth. Matthew 13:41-42