Which New Testament book emphasizes love significantly?

1 Corinthians

Who is the lead vocalist of Maroon 5? Which amphibian famously secretes a toxin powerful enough to kill up to 10 people? Who famously covered Leonard Cohen's "Hallelujah" in 1994? Which actor portrayed Gunther, the Central Perk barista? What term refers to Jesus' rising into heaven 40 days after Easter?