'Seal Up' in the Bible

Set me as a seal upon thy heart, as a seal upon thy arm: for love is strong as death; jealousy is cruel as the grave: the coals of it are coals of fire, which hath a most vehement flame.

Seventy weeks are determined upon thy people and upon thy holy city to finish the transgression, and to make an end of sins, and to make reconciliation for iniquity, and to bring in everlasting righteousness, and to seal up the vision and prophecy, and to anoint the most Holy.