Complete Deuteronomy 33:27: "underneath are the everlasting ___."

Answer: arms

In his final blessing Moses said, "The eternal God is your dwelling place, and underneath are the everlasting arms."

“The eternal God is your dwelling place, and underneath are the everlasting arms. He drives out the enemy before you, giving the command, ‘Destroy him!’”— Deuteronomy 33:27 (BSB)