Has His mercy ceased forever? 

His mercy endures forever § The Lord is longsuffering and abundant in mercy. § Who is a God like You, pardoning iniquity … ? He does not retain His anger forever, because He delights in mercy. He will again have compassion on us, and will subdue our iniquities. You will cast all our sins into the depths of the sea. § Not by works of righteousness which we have done, but according to His mercy He saved us.Blessed be the God and Father of our Lord Jesus Christ, the Father of mercies and God of all comfort, who comforts us in all our tribulation, that we may be able to comfort those who are in any trouble, with the comfort with which we ourselves are comforted by God.A merciful and faithful High Priest in things pertaining to God, to make propitiation for the sins of the people. For in that He Himself has suffered, being tempted, He is able to aid those who are tempted.