From Matthew 5: 29-30 need explanation and example?

it means you need to control yourself. Of course it's not just an eye or a hand that does something sinful. It's our mind that makes us sins. Or our heart, is a way. Our emotions makes us do good or bad. Should we tear our brain out then? No. But to start thinking before we act.

"If, now, your right eye is making you stumble, tear it out and throw it away from you. For it is better for you to lose one of your members than for your whole body to be pitched into Ge·henʹna. 30 Also, if your right hand is making you stumble, cut it off and throw it away from you. For it is better for you to lose one of your members than for your whole body to land in Ge·henʹna" (Matthew 5:29,30. Bible).

Gehenna: The Greek name for the Valley of Hinnom, southwest of ancient Jerusalem. (Jer 7:31) It was prophetically spoken of as a place where dead bodies would be strewn. (Jer 7:32; 19:6) There is no evidence that animals or humans were thrown into Gehenna to be burned alive or tormented. So the place could not symbolize an invisible region where human souls are tormented eternally in literal fire. Rather, Gehenna was used by Jesus and his disciples to symbolize the eternal punishment of “second death,” that is, everlasting destruction, annihilation.—Re 20:14; Mt 5:22; 10:28.

How much better to exercise self-control, even if doing so is as hard as tearing out an eye! After all, is it worth sacrificing everlasting life for merely a few fleeting moments of sensual pleasure?

What we feed the eye can also foster greed. Hence, the Bible warns us that the selfish “desire of the eyes . . . does not originate with the Father, but originates with the world. Furthermore, the world is passing away and so is its desire, but he that does the will of God remains forever.”—1 John 2:16, 17.

Is the Bible being unduly restrictive? Not at all! To disregard its standards is to invite problems and unhappiness. (Galatians 6:7, 8) To heed God’s Word, including its wisdom for our figurative eye, is to sow happiness. “Happy are those hearing the word of God and keeping it,” said Jesus. (Luke 11:28) What is more, they have the prospect of remaining forever on earth, whereas those who cultivate an immoral or greedy eye lose out on both happiness and life.

Yes

It's called "hyperbole", exaggerated talk to make a point. It was very popular in first century Palestine.

Example: " I could stretch a mile, except I'd have to walk back!"

In Jesus' parable about the rich young man who wanted to become a disciple. Jesus told him to give away all his riches and then come follow Jesus. That man could not do it. Then there is the true story of St. Francis of Assisi who did give away everything and followed Jesus.

We're encouraged to take strong measures to avoid any conduct or activity that could jeopardize are standing or relationship with God

From verse 27 to 30, Jesus' righteousness uncovers sin at a deeper level than the external. He reveals the true intent of the law of God (not to commit adultery).

You have to start at verse 27 to understand this - "You have heard the commandment that says, 'You must not commit adultery'. But I say, 'Anyone who even looks at a woman with lust has already committed adultery with her in his heart." Then comes verse 29, "So if your eye..."

Now it makes sense! Men who look lustfully at women are in danger of hell. It does not matter if they refrain from actually carrying out a physical act of lust on the women, because they have sinned in their hearts! And it is the heart that God examines, to see if it is corrupt or not.

This is not Jesus urging self-mutilation, for even if that 'sinful eye' was gouged out, that would no nothing to stop the lust in the man's heart. Only Jesus can bring the level of righteousness that cleanses our sinful hearts with their lustful and selfish desires.

In the New Testament, when 'hell' is translated from the Greek word Gehenna, it links us to the valley outside Jerusalem where some of Judah's kings performed abominable child sacrifices to idols. In Jesus' day that valley had become the rubbish tip where fires constantly burned and maggots perpetually thrived away from the flames. It was a stinking pit and so Jesus was speaking of God's place of punishment. Jesus was saying as strongly as words would allow that unless our hearts are cleansed of their sin, we will not escape hell, God's eternal punishment.

See the links for how Jesus goes on to provide that surpassing righteousness for those trusting in Him to save them from their corrupt hearts. No literal gouging out of eyes, or cutting off of hands required! AiH

christ was telling people to stop doing evil things. their evil deeds will send them to hell if they do not change and do good

thanks for all of us who have answer to my question