Sotah 42b:7

It is written that Goliath’s mother was: “Harafa” (II Samuel 21:16), and in another place it is written: “Orpah” (Ruth 1:4), and the Gemara will soon explain

Emor The Hebrew Bible

Ruth vs. Orpah: The High Stakes of Life

Ruth: Midrash and Aggadah

Talmud (Oral Torah) - Sotah 42a - Sotah 42b

BENEDICTIONS

Emor - Wikipedia

Redemption and the Power of Small Things - Jewish Action

Orpah - Wikipedia

Back to the sources: Jewish wisdom for a time like this, David Golinkin

Shmuel 1-Chapter 17: David and Goliath –

Talmud (Oral Torah) - Sotah 42a - Sotah 42b