Rahab expressed her faith in Yahweh. The statement "for Yahweh your God, he is God in heaven above and on the earth below" is a recognition of her faith. (See: [[rc://en/tw/dict/bible/kt/faith]] and [[rc://en/tw/dict/bible/kt/heaven]])
The Israelites were to completely destroy the evil Canaanites. They are compared to melting snow: "... melting away because of us." (See: [[rc://en/ta/man/translate/figs-metaphor]] and [[rc://en/tw/dict/bible/kt/evil]])