Lamentations is the hardest book to quote in a greeting card because it refuses to resolve. Jeremiah watches Jerusalem burn and writes it down. Chapter 3 makes a single interior move: "This I recall to my mind, therefore have I hope." The recall is not to changed circumstances; it is to the mercies of God that are new every morning. The hope does not come from the situation improving. It comes from a memory of what God is like.
Ephesians 2:12 names the pre-Christ condition explicitly: "having no hope, and without God in the world." Paul is not exaggerating for rhetorical effect. He is saying that genuine hopelessness is what existence looks like apart from God. Which means the hope Romans 15:13 describes β "the God of hope fill you with all joy and peace" β is a specific, real departure from that baseline condition, not spiritual decoration on top of it.
Commentary is from a charismatic Protestant perspective, drawing on KJV text and public-domain sources including Spurgeon, Andrew Murray, and Matthew Henry.