"We exult in hope of the glory of God" (Ro 5:2). To rejoice is to celebrate something rewarding, and God's glory would certainly qualify. But since it is a hope it is unseen because "hope that is seen is not hope" (Ro 8:24). "Surely there is a future, and your hope will not be cut off" (Pr 23:18). Central to this hope is "Christ in you, the hope of glory" (Col 1:27). This is the "hope that is in you" (1Pe 3:15) because it is the "hope of salvation" (1Th 5:8). Through rejoicing you proclaim "the hope and resurrection" (Ac 23:6). You rejoice because your "faith is the assurance of things hoped for" (Heb 11:1) since you know "hope does not disappoint" (Ro 5:5).
Hope is in being "fellow heirs" (Ro 8:17) in terms of "the revealing of the sons of God" (:19) regarding "the freedom of the glory of the children of God" (:21).We rejoice knowing "we have a building from God . . . eternal in the heavens" (2Co 5:1). We don't rejoice selfishly because "a horse is a false hope for victory" (Ps 33:17). Consequently one's "hope is in the Lord his God" (Ps 146:5) and "my hope is from Him" (Ps 62:5). Therefore rejoicing means resting on "the hope of eternal life" (Tit 1:2) and "looking for the blessed hope" (2:13).
Hope is the end product of tribulation because it "brings about perseverance; and perseverance, proven character; and proven character, hope" (Ro 5:3-4). We are to rejoice in hope and persevere in tribulation (Ro 12:12). "This hope we have as an anchor" (Heb 6:19). The expectation is for "the redemption of our body" (Ro 8:23) because "in hope we have been saved" (:24). Tribulation causes you to remember and "this I recall to my mind, therefore I have hope" (La 3:21). "May the God of hope fill you with all joy and peace in believing" (Ro 15:13).