Passage
For there went forth fire from Heshbon, a flame from the city of Sihon; It consumed Ar of Moab, the lords of the high places of the Arnon.
For there went forth fire from Heshbon, a flame from the city of Sihon; It consumed Ar of Moab, the lords of the high places of the Arnon.
Numbers 21:26 For Heshbon was the city of Sihon the king of the Amorites; and he had fought against the former king of Moab, and had taken all his land out of his hand, even unto the Arnon.
Numbers 21:27 Therefore the poets say, Come to Heshbon; let the city of Sihon be built and established.
Numbers 21:28 For there went forth fire from Heshbon, a flame from the city of Sihon; It consumed Ar of Moab, the lords of the high places of the Arnon.
Numbers 21:29 Woe to thee, Moab! thou art undone, people of Chemosh: He gave his sons that had escaped, and his daughters into captivity to Sihon the king of the Amorites.
Numbers 21:30 And we have shot at them; Heshbon is perished even unto Dibon; and we have laid [them] waste even unto Nophah, which reacheth unto Medeba.
The verse centers on "went", "forth", "fire", "heshbon", "flame", "city", "sihon", and "consumed". It is saying that the verse draws attention to "went" and "forth", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 27's "Therefore the poets say Come to Heshbon..." into verse 29's "Woe to thee Moab thou art undone...", so "went" and "forth" belong inside that flow. In Numbers context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "went" and "forth" with trust shaped by these words, not by a vague optimism outside the passage.