the helmet.

1 Samuel 17:5, 58
and he wore a bronze helmet and bronze coat of mail weighing five thousand shekels. . . .

Isaiah 59:17
He put on righteousness like a breastplate, and the helmet of salvation on His head; He put on garments of vengeance and wrapped Himself in a cloak of zeal.

1 Thessalonians 5:8
But since we belong to the day, let us be sober, putting on the breastplate of faith and love, and the helmet of our hope of salvation.

the sword.

Isaiah 49:2
He made my mouth like a sharp sword; He hid me in the shadow of His hand. He made me like a polished arrow; He hid me in His quiver.

Hebrews 4:12
For the word of God is living and active. Sharper than any double-edged sword, it pierces even to dividing soul and spirit, joints and marrow. It judges the thoughts and intentions of the heart.

Revelation 1:16
He held in His right hand seven stars, and a sharp double-edged sword came from His mouth. His face was like the sun shining at its brightest.

Revelation 2:16
Therefore repent! Otherwise I will come to you shortly and wage war against them with the sword of My mouth.

Revelation 19:15
And from His mouth proceeds a sharp sword with which to strike down the nations, and He will rule them with an iron scepter. He treads the winepress of the fury of the wrath of God, the Almighty.

which.

Matthew 4:4, 7, 10, 11
But Jesus answered, "It is written: 'Man shall not live on bread alone, but on every word that comes from the mouth of God.'" . . .

Hebrews 12:5, 6
And you have forgotten the exhortation that addresses you as sons: "My son, do not make light of the Lord's discipline, or lose heart when He rebukes you. . . .

Hebrews 13:5, 6
Keep your lives free from the love of money and be content with what you have, for God has said: "Never will I leave you, never will I forsake you." . . .

Revelation 12:11
They have conquered him by the blood of the Lamb and by the word of their testimony; and they did not love their lives so as to shy away from death.