Most of the time in modern day chrisendom when we hear God is faithful we think of only the pleasurable things. If we can remember what we've already discussed in the book of Jeremiah, we will see that God's faithfulness towards Israel was not only in things pleasurable, but in things terrible as well. God's judgment for their disobedience was imminent but they refused to turn to Him. God's word is sure against all unrighteousness, he will remain faithful to his word.