What is the context of Numbers 21:18-19?

• The Journey to Moab (Numbers 21:10-20 true)
• The Song of the Well (Numbers 21:10-20 true)
• Journey around Moab (Numbers 21:10-20 true)
• Travels in the Wilderness (Numbers 21:10-20 true)
• Israel’s Journey to Moab (Numbers 21:10-20 true)
• From Mount Hor to Moab (Numbers 21:10-20 true)
• The Bronze Serpent (Numbers 21:4-20 true)