The Lord is slow to anger and great in power, Nahum 1-3.

God is jealous, and the Lord avenges; The Lord avenges and is furious. The Lord will take vengeance on His adversaries, And He reserves wrath for His enemies; The Lord  is slow to anger and great in power, And will not at all acquit the wicked. The Lord has His way In the whirlwind and in the storm, And the clouds are the dust of His feet. Who can stand before His indignation? And who can endure the fierceness of His anger? His fury is poured out like fire, And the rocks are thrown down by Him. The Lord  is good, A stronghold in the day of trouble; And He knows those who trust in Him. What do you conspire against the Lord? He will make an utter end of it. Affliction will not rise up a second time. Thus says the Lord: “Though they are safe, and likewise many, Yet in this manner they will be cut down When he passes through. Though I have afflicted you, I will afflict you no more; For the Lord will restore the excellence of Jacob Like the excellence of Israel, For the emptiers have emptied them out And ruined their vine branches. “Behold, I am against you,” says the Lord of hosts, “I will burn your chariots in smoke, and the sword shall devour your young lions; I will cut off your prey from the earth, and the voice of your messengers shall be heard no more.”
Nahum 1:2-3,6-7,9,12,2:2,13 - https://www.biblegateway.com/passage?search=Nahum%201:2-3,6-7,9,12,2:2,13&version=NKJV