Jehovah
LORD (Jehovah) — the eternal I AM, the covenant God of Israel
And I also have given you cleanness of teeth in all your cities, and want of bread in all your places: yet have ye not returned unto me, saith the LORD. Amos 4:6–11
Five times the LORD lists what He allowed to happen so Israel would come back, and five times He says they did not return 'unto me.' Latter-day Saints understand this pleading voice as Jehovah, the premortal Jesus Christ, who still invites His people to return to Him.
How we know: Jehovah is the premortal Christ (Abraham 1:16; D&C 110:3–4)
