In Lamentations 3, 22-24, we read, It is of the Lord's mercies that we are not consumed, because his compassions fail not. They are new every morning. Great is thy faithfulness. The Lord is my portion, saith my soul, therefore will I hope in him. Now Jeremiah wrote these words at a time when he and the people of Judah had suffered through the destruction of Jerusalem at the hand of Babylon, even Jeremiah himself suffering from that affliction. He's a type of the Lord Jesus Christ who endured the suffering of God's wrath upon him for that people that he came to save and he identified with them in his suffering. These could very well be the words of the Lord Jesus Christ who, looking to his Father, in that time that he was on the cross, that the Lord would sustain him, and that would be because of his faithfulness that the Lord would hear him and his hope was in God the Father, that after having paid the complete sin debt of his people, God the Father would raise him from the dead and justify that people.