When the Israelites were told about the strong people, fortified cities and giants in their Promised Land, they spoke against God asking Why has God brought us here to die from war? (Numbers 14:3) and then rebelled against Him by saying Let us chose a leader and return to Egypt. (Numbers 14:4)
God then asked Moses "How long will these people reject Me? How long will they not believe Me? (Numbers 14:11)
God also told Moses "I will strike them with pestilence and disinherit them." (Numbers 14:12)
However Moses told God, "I pray let the power of my God be great just as You have spoken saying, 'The Lord is longsuffering and abundant in mercy forgiving the sins and transgressions but He by no means clears the guilty for He visits the sins of the fathers on the children to the third and fourth generations.'
I pray that you pardon the sin of this people according to the greatness of Your mercy just as You have forgiven them since we left Egypt." (Numbers 14:17-19)
As a result of interceding on behalf of the Israelites, God told Moses "I have forgiven them according to your words but .... because all these men who have seen My glory and the signs I did in Egypts and in the wilderness have put Me to the test these 10 times and have not listened to My voice they shall certainly not see the Promised Land. as I live." (Numbers 14:20-23)
So how did Moses get God to change the Israelite's punishment from instant death to not seeing or entering the Promised Land?
He quoted the Words that God had spoken to him when he was on Mount Sinai for God had told him, The Lord, the Lord God is merciful, gracious, longsuffering and abounding in goodness and truth, keeping mercy for thousands, forgiving iniquity, transgression and sin but by no means clearing the guilty for He visits the iniquity of the fathers upon the children and the children's children to the third and fourth generation. (Exodus 34:6-7)
Therefore if you have sinned against God and He has pronounced a terrible judgement on you, you can plead with Him by quoting Scriptures which support your point of view.
If your enemies who have wronged try to evade God's judgement by following this principle, do not fear because God is a God of justice and He does not clear the guilty. He may give them a lighter punishment like wandering in the wilderness until they die instead of instant death, but He will still punish them.