Jonah 3:4-5 (KJV)
4 And Jonah began to enter into the city a day’s journey, and he cried, and said, Yet forty days, and Nineveh shall be overthrown.
5 So the people of Nineveh believed God, and proclaimed a fast, and put on sackcloth, from the greatest of them even to the least of them.
Have a read of the book of Jonah and then Nahum.
After Jonah proclaimed judgement the king and people of Nineveh repented and GOD relented on the proclaimed judgment. Repentance was the LORD GOD’s desire. Regrettably after around 150 years we read in the book of Nahum that judgment will come. What happened? In the Defender’s Study Bible Commentary we read “Nahum’s entire prophecy is an indictment of Nineveh and a prophecy of its soon-coming judgment. Although it is not mentioned by Nahum, it had been about 150 years since Nineveh’s king and people had all repented of their wickedness and turned to the Lord at the preaching of Jonah. Since that generation, however, Nineveh and the Assyrians had descended into greater depths of cruelty and evil than ever, and God’s could no longer tolerate such sinfulness. He used Assyria to punish Israel, but now Assyria’s time had come, and Nahum’s prophecy announced it in no uncertain terms.
Although some have suggested Nahum prophesied during the reign of Hezekiah in Judah, the evidence seems to fit better the closing days of Josiah’s rule. In any case, Nahum’s prophecies against Nineveh were completely fulfilled.”
We know that “2 Timothy 3:16 (KJV) All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:” GOD was gracious and called Nineveh to repentance again, after they turned back to their wicked ways and even more so than before, but they did not listen. Therefore we can take this as a warning if we backslide and not repent we will pay the price of our sin.
Therefore be encouraged to seek the lord when He calls “Psalms 27:8 (KJV) When thou saidst, Seek ye my face; my heart said unto thee, Thy face, LORD, will I seek.”. When we backslide let us repent “2 Chronicles 7:14 (KJV) If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.” He is ready to receive everyone who comes back to Him with open arms (have a read of Luke 15:11-32). Let us keep short accounts with GOD, stay close with Him every day, and gather together with our brothers and sisters so we can encourage and exhort one another in our walk with Him.

For more on this topic have a look at:

Come back to Jesus – 2024.08.11 https://missioncommunities.network/2024/08/11/come-backto-jesus-2024-08-11/

Sin deceives – 2024.08.27 https://missioncommunities.network/2024/08/27/sin-deceives-2024-08-27/

Helping the backslider- 2024.07.27 https://missioncommunities.network/2024/07/27/helping-the-backslider-2024-07-27/

Drifting by neglect – 2024.08.26 https://missioncommunities.network/2024/08/26/drifting-by-neglect-2024-08-26/

GOD hears – 2024.08.28 https://missioncommunities.network/2024/08/28/god-hears-2024-08-28/