The Hebrew verb lut means to wrap, cover, or envelop. It describes the act of concealing something within a covering, as when a sword is wrapped in cloth or a face is veiled. The word appears rarely but in significant contexts.
In 1 Samuel 21:9, the sword of Goliath is found 'wrapped in a cloth behind the ephod' — a quiet reminder of God's past faithfulness preserved for a future moment of need. The act of wrapping and covering carries theological overtones of divine concealment, preservation, and provision. God's mercies are often stored and revealed at the right time.