The Lord is compassionate and gracious, He loves to show mercy and desires to show himself powerful in saving, not in destroying. (c.f. Jonah 4:2, Neh. 9:17, 31, Exo. 34:6, Psalms 86:5,15, 103:8, 145:8, Joel 2:13, Numbers 14:18.)
However, the Lord will destroy all wickedness and no evil or injustice can be found in Him. It is for injustice and sinful pride and evil that the perfection of this world was destroyed, but it was through Jesus Christ, God's only Son, that this perfection was restored and will be forevermore, praise be to Him.
It is only through Jesus Christ that God the Father of all Creation shows himself merciful, which is his great desire. His desire is mercy not sacrifice, but that all would be made right and in correct standing.
How many times did God give the Israelites another chance. Many times. He said, "If my people who are called by my name, will humble themselves and pray, then will I hear from heaven, and I will heal their land."
He sacrificed all he had, his very own life in the blood of Jesus Christ, the spotless Son of God. He was the only to live a sinless life.
The Bible says that "All who call upon the name of the Lord will be saved." This made possible through Jesus. He saved over 120,000 persons on that day that the people of Ninevah repented from their idolatry and sacrificed to the Father of all Creation, recognizing him. He caused great injustice to be put to rest through his mercy, but He would have destroyed them, completely, had they not repented.
Our Father believes in his creation. He created us for himself, for his very own, and longs for that possession. What became accursed was made right when Jesus became the curse for us, but we must believe in Him, forsaking all else.
It is the greatest insult to our Creator when we deny him, and it is a worse injustice than before to despise the sacrifice that Jesus Christ made on our behalf. Only God can judge the injustice of those who have rejected him, but do not be one who turns aside instead of giving your all for him. He deserves our all.
