Revelation 7:3
Saying, 'Do not damage the earth or the sea or the trees, until we have marked the servants of God with a seal on their foreheads' — the angel's prohibition frames the sealing as preventive protection; those bearing God's seal on the forehead (metōpon) will be protected from the judgments about to fall. The forehead-marking echoes Ezekiel 9:4, where the righteous are marked for protection.