'Seal Up' in the Bible

SHESet me as a seal, upon thy heart, as a seal upon thine arm, For, mighty as death, is love, Exacting as hades, is jealousy, - The flames thereof, are flames of fire, The flash of Yah!

And, when the seven thunders had spoken, I was about to write, and I heard a voice out of heaven, saying - Seal up the things which the seven thunders have uttered, and do not write, them.

And he saith unto me - Do not seal up the words of the prophecy of this scroll, for, the season, is, near: