#I will wipe away mankind ... from the surface of the earth

The writer speaks of God killing people as if God were wiping dirt off a flat surface. AT: "I will destroy mankind ... so that there will not be any people on the earth" (See: [[:en:ta:vol1:translate:figs_metaphor]])

#I will wipe away mankind whom I have created

God created all mankind. Some languages would need to translate this as two sentences. AT: "I created mankind. I will wipe them away" (See: [[:en:ta:vol2:translate:figs_distinguish]])

#wipe away

"completely destroy." Here this is used in a negative sense, for God is talking about destroying the people because of their sin.

#Noah found favor in the eyes of Yahweh

"Yahweh looked favorably on Noah" or "Yahweh was pleased with Noah" (UDB)

#in the eyes of Yahweh

Yahweh sees and knows what people do. AT: "in Yahweh's sight" or "in Yahweh's thoughts." (See: [[:en:ta:vol2:translate:figs_metonymy]])