Exodus 1 describes a new Egyptian king oppressing the Israelites because he feared their increasing population. Taskmasters imposed forced labor upon them, and the Israelites built the store cities Pithom and Raamses for Pharaoh.
The account places Pithom within the Egyptian setting immediately preceding the birth and calling of Moses and the Exodus.
The reference to Pithom contributes to attempts to understand the geography and historical setting of Israel's residence in the eastern Nile Delta.