6 But whoever stumbles one of these little [ones] the [ones] putting-faith in me, it is better for him that a millstone [muloj] of-an-ass should be hung around his neck and he should be sunk in the watery-deep of the sea (Matthew 18)
42 But whoever stumbles one of these little [ones], the [ones] believing, it would be finer for him if a millstone [muloj] of-an-ass were put around his neck and he were thrown into the sea (Mark 9)
An Ass in scripture stands for the congregation of a true church. Because Jesus rode an Ass into Jerusalem on Palm Monday.
5 Tell the daughter of Zion, 'Look! Your King is coming to you, mild-tempered, and mounted upon an ass, yes, upon a colt, the offspring of a beast of burden.' (Matthew 21 NWT)
So Jesus was using symbolic language. He was not inventing nasty ways to drown people physically. The millstone of an ass is the works of the congregation and the tablet of the law of the church. Having the millstone of an ass, the law of works of the church, hung around your neck in shame, means that you have transgressed that law. Being thrown into the sea of the world is being disfellowshipped/excommunicated/ejected from the land of the church. So being ejected into the sea with this large weight hung around your neck is being ejected and never being permitted back. So it is a permanent ejection into the sea. But even that is better than stumbling one of the little ones. For those who cannot go into a true church can still be saved through the 1AC if they obey their consciences whilst outside the true church and put faith in God and have works or faith in order that they are sealed into the FRC or works of love in order that they are sealed into the LRC (Love Ransom Covenant, the Omega Covenant).
If you stumble a little one, putting faith in Jesus, and believing in him, a young sons of the 1AC, then you rob him of his Kingdom salvation. So in god's justice you too will be robbed of your kingdom salvation. However if you are permanelty disfellowshipped then you can still be saved through the 1AC and the FRC or the LRC (the Love Ransom Covenant)..
1 Then he said to his disciples: It is unavoidable that causes for stumbling should come. Nevertheless, woe to the one through whom they come! (Luke 17 NWT)
2 It would be of more advantage to him if a millstone [liqoj mulikoj] were suspended from his neck and he were thrown into the sea than for him to stumble one of these little ones. (Luke 17 NWT)