Sword
The sword was the primary close-combat weapon of the biblical world and appears throughout Scripture both as a literal instrument of war and as a pervasive theological metaphor. Hebrew swords were typically double-edged, pointed, worn in a sheath, and suspended from the belt (Ex. 32:27; 1 Sam. 31:4; Ps. 149:6). The development from bronze to iron swords across the biblical period gave the Philistines an early military advantage over Israel that was gradually overcome.
In biblical theology the sword carries multiple meanings. God's judgment is repeatedly depicted as a sword — "the LORD's sword is bathed in blood" (Isa. 34:6); the divinely appointed ruler bears the sword as God's agent of justice (Rom. 13:4). The "sword of the Spirit, which is the word of God" (Eph. 6:17) depicts Scripture as the believer's offensive weapon in spiritual warfare. Hebrews 4:12 describes the word of God as sharper than any two-edged sword, penetrating to the division of soul and spirit. The returning Christ is depicted with a sharp sword proceeding from his mouth (Rev. 19:15), exercising the ultimate divine judgment.